How do I verify: tan(x)+cot(x)=(2)/sin(2x)?

I always get stuck after writing out (sin^2x+cos^2x)/sin(x)cos(x)

Answers

Answer 1

[tex]sin^2(\theta)+cos^2(\theta)=1\qquad \qquad sin(2\theta)=2sin(\theta)cos(\theta) \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]tan(x)+cot(x)=\cfrac{2}{sin(2x)} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{doing the left-hand-side}}{\cfrac{sin(x)}{cos(x)}+\cfrac{cos(x)}{sin(x)}\implies \cfrac{sin^2(x)+cos^2(x)}{\underset{\textit{using this LCD}}{sin(x)cos(x)}}} \implies \cfrac{1}{sin(x)cos(x)}[/tex]

now, let's recall that anything times 1 is just itself, namely 5*1 =5, 1,000,000 * 1 = 1,000,000, "meow" * 1 = "meow" and so on, so we can write anything as time 1.

let's recall something else, that same/same = 1, so

[tex]\cfrac{cheese}{cheese}\implies \cfrac{spaghetti}{spaghetti}\implies \cfrac{horse}{horse}\implies \cfrac{butter}{butter}\implies \cfrac{25^7}{25^7}=1[/tex]

therefore

[tex]\cfrac{1}{sin(x)cos(x)}\cdot \cfrac{2}{2}\implies \cfrac{2}{2sin(x)cos(x)}\implies \cfrac{2}{sin(2x)}[/tex]


Related Questions

One hundred voters were asked whether they supported a bill that had

Answers

The question is cut off.

simplify [tex]y^{-3}[/tex]

Answers

The answer is in the picture below .
1/y3 hope this helps

The radius of the circle shown below is 8 centimeters. What is the
approximate length of XY?
115

A. 50.3 cm
B. 16.1 cm
C. 8.0 cm
D. 64.2 cm

Answers

16.1 cm! correct if wrong!

If the sum of six consecutive even integers is 438, what is the smallest of the six integers?

Answers

46
Because the sum of six consecutive is 46

A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below.
81 71 202 113 269 248 242
Find the median number of newspapers sold.
CE
O A. 242 newspapers
OB 175 newspapers
OC. 113 newspapers
OD. 202 newspapers

Answers

OD Step-by-step explanation:

The median of the of the number of newspapers sold by shopkeeper is 202 .

Given,

A store manager kept track of the number of newspapers sold each week over a seven-week period.

81 71 202 113 269 248 242.

Now,

The median of the dataset is the middle value of the dataset, which means that 50 % of the values are below the mean and 50% of the values are above the mean.

Rearrange the dataset in ascending order as

71, 81, 113, 202, 242, 248, 269.

Thus the median will be the 4th value.

Hence the median will be 202.

Thus the correct option will be 202 Newspapers.

Know more about median,

https://brainly.com/question/300591

#SPJ4

Emily reads a story book. o the first day, she reads 1/9 of the whole book, and on the second day, she reads 24 pages. The ratio of the number of pages read to the remaining pages in the two days is 1:4. How many pages are there in this book

Answers

Answer:

Step-by-step explanation:

Let P be the number of pages

First day reads P/9 pages

Second day reads 24 pages

two days reading is P/5  (1 page read for every 4 pages left)

         P/9 + 24 = P/5

        P + 24(9) = 9P/5

  5P + 24(9)(5) = 9P

               1080 = 4P

                     P = 270 pages

There are 270 pages in this book.

Given that,

Emily reads a storybook the first day,

She reads 1/9 of the whole book, and on the second day, she reads 24 pages.

The ratio of the number of pages read to the remaining pages in the two days is 1:4.

We have to find

How many pages are there in this book?

According to the question,

Let, P is the number of pages,

The first day Emily reads p/9 pages of the whole book,

And the second day she read 24 pages.

The ratio of the number of pages read to the remaining pages in the two days = 1;4 = p/5.

Therefore,

The number of pages reads first day + the number of pages read the second day = The ratio of the number of pages read to the remaining pages in the two days

[tex]\rm \dfrac{p}{9} + 24 = \dfrac{p}{5}\\\\ \dfrac{p}{5} - \dfrac{p}{9} = 24\\\\\dfrac{p \times 9 - p\times 5}{45} = 24\\\\ \dfrac{9p-5p}{45} = 24\\\\\dfrac{4p}{45} = 24\\\\4p = 24\times 45\\\\4p = 1080\\\\p = \dfrac{1080}{4}\\\\p = 270 \ pages[/tex]

Hence, there are 270 pages in this book.

For more details refer to the link given below.

https://brainly.com/question/14505922

How can you solve multistep equations that represent real world
scenarios?

Answers

Yeah like you can do scenarios or examples or you can get creative

Please hurry!! This assignment is almost due thank you!!

Answers

Answer:

x = 33

Step-by-step explanation:

(x-17)°+(5x-1)°=180°

6x-18 = 180

6x = 198

x = 33

I need help solving this problem

Answers

What is the problem you are trying to solve

PLEASE HELP!!!! Identify the mistake and use the correct answer to the problem!!!

Answers

Answer:

1 [tex]\frac{3}{8}[/tex]

Step-by-step explanation:

the denominators must be the same so, since 4 goes evenly into 24 we can create an equivalent fraction from 3/4 to 18/24 (multiply numerator and denominator by 6)

now you can add:

[tex]\frac{15}{24}[/tex] + [tex]\frac{18}{24}[/tex] = [tex]\frac{(15+18)}{24}[/tex] = [tex]\frac{33}{24}[/tex]

since the numerator is larger than the denominator this is called an improper fraction and can be changed into a mixed number by dividing 24 into 33

24 goes into 33 one time with a remainder of 9

so 33/24 = 1 [tex]\frac{9}{24}[/tex] wherein 9 and 24 can each have a 3 factored out to make it fully simplified

9÷3 = 3

24÷3 = 8

final answer is 1 [tex]\frac{3}{8}[/tex]

Answer:

11/8 is the correct answer

Step-by-step explanation:

15/24 + 3/4

Reduce the fraction   15/24 ​   to lowest terms by extracting and canceling out 3.

=5/8 +3/4

Least common multiple of 8 and 4 is 8. Convert 5/8 and 3/4 to fractions with denominator 8.

= 5/8 + 6/8

since 5/8 and 6/8 have the same denominator, add them by adding their numerators.

= 5 + 6/8

Add 5 and 6 to get 11.

=11/8

here is why 9/14 is wrong

What is the length of LN in the right triangle below?

Answers

Answer:

D 280

Step-by-step explanation:

Pythagoras theorem

Answer:

a

Step-by-step explanation:

LN=√19^2 - 9^2

=√361 - 81

=√280

The angle of depression from a window 10 m above the ground to a coin on the ground is 15°. Find the distance of the coin from the base of the building. Show your reasoning for each step.

Answers

Here is the answer and the working

Solve this plz question plz​

Answers

We have: [tex](-\frac{15}{18})[/tex] ÷ [tex](-\frac{20}{24})[/tex] = [tex]\frac{-15}{18} .\frac{-24}{20} = \frac{(-3)(5).(-4)(6)}{(3)(6).(4)(5)} = 1[/tex]

ANSWER: 1

ok done. Thank to me :>

Answer:

1

Step-by-step explanation:

[tex]( - \frac{15}{18} ) \div ( - \frac{20}{24} ) \\ now \: you \: have \: fraction \: divided \: by \: fraction \: then \: do \: reciprocal \: \\ ( - \frac{15}{18} ) \times ( - \frac{24}{20} ) \\ = 1[/tex]

on tuesday a local a hamburger shop sold a combined total of 448 hamburgers and cheeseburgers , the number of cheeseburgers sold was three times the number of hamburgers sold how many hamburgers were sold on tuesday ?

Answers

Cheeseburger=3/4
Hamburgers=1/4
448/4=112
112x3=336
Cheeseburgers=336
Hamburgers=112
112 hamburgers were sold on Tuesday.

Oceanside Bike Rental Shop charges 13 dollars plus 8 dollars an hour for renting a bike. Tim paid 45 dollars to rent a bike. How many hours did he pay to have the bike checked out?​

Answers

Step-by-step explanation:

Shop charges =13

Many left for renting bike = 45-13 =$32

If renting for 1hr cost $8

then renting for X Hrs will cost $32

1/X =8/32 cross multiplying

8X= 32

X= 32÷8= 4hrs

need this soon please

Answers

Answer: pretty sure -7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

(-80) - (-10) is -79

-70 / (+10) = -7

(fog) f(x) = 1/x g(x) square root x+3

Answers

Answer:

see the step below, but I'm not sure if this you want

Step-by-step explanation:

[tex](fog) = \frac{1}{ \sqrt{x + 3} } [/tex]

[tex](fog) = \frac{ \sqrt{ x + 3} }{x + 3} [/tex]

what is the value of x that makes the equation 8 x -4 equal 96 true​

Answers

Answer:

x= 12.5 or 25/2

Step-by-step explanation:

8x - 4 (+4) = 96 (+4)

8x (/8) = 100 (/8)

x= 12.5 or 25/2

Please help me!! I don't understand
No linksssss

Answers

Answer:

thanks haahhahahaha

Step-by-step explanation:

Can someone help me with these 2 geometry questions?? Will mark brainiest :)

Answers

Answer:

Thats to hard Do it your self

what is 12 3/4 divided by 3

Answers

Answer:

4.25 as decimal and 4 1/4 as a fraction

Step-by-step explanation:

Given ω=[tex]\frac{3-2i}{5-6i}[/tex] , find ω in the a+bi form.

Answers

Answer:

Solution is given in the photo

please need help with this Calculus question

Answers

So what’s the question?

Solve the equation square root of x-2+5 = 7 for the variable. Show each step of your solution process

Answers

Answer:

x=4

Step-by-step explanation:

x+3=7

subtract 3 from both sides

simplify

order the expression from least to greatest

Answers

Answer:

So it would be 4, 11, 20

Step-by-step explanation:

[tex]11^1 = 11[/tex]

[tex]2^2 * 5 = 20[/tex]

[tex]8^2-60 =4[/tex]

There are two types of packages that are available for hotel stay

- you can use the hotel unlimited for $500 a month

- Or you can spend $50 a day per visit.

Enter an equation that can be used to find the number of visits per month needed for the two packages to cost the same amount

Answers

Answer:

for one month 500$

for daily visit 50$

500$=50$*x days

x days=500$/50$

x days = 10 days

10 days of daily visits costs 500$ equal to one month

A square is a quadrilateral with four equal sides and four 90 degree angles. Is quadrilateral ABCD a square?

Answers

Answer: yes

Step-by-step explanation:

Hi guys can u guys help me add 322 + 12

Answers

Answer:

334 is the answer

Step-by-step explanation:

you add them together

Answer:

334 is the right answer

Step-by-step explanation:

please mark me brainliest

George is building a rabbit run in his backyard he makes the length 2/7km and the width 1/5km draw a sketch of his rabbit run and then find the area

Answers

Here !

I hope this helps you a little ,

Which equation represents this line in point-slope form?

A.
`(y + 4) = (4)/(3) (x + 3)`

B.
`(y −4) = -(4)/(3) (x +3)`

C.
`y= -(3)/(4)x`

D.
`4y− 3x = 0`

Answers

Answer:

The Answer is Option A or Option B

Step-by-step explanation:

First let's review what point slope form is.

[tex]y - y 1 = m(x - x1)[/tex]

To take a line and put it into point slope form you need to identify one of the points. In this case the point is either (-3, -4) or (-3, 4) but without a graph attached I cannot personally say which one it is.

You will also need to identify the slope of the line (m) based on the graph, so identify if the graph is ascending or descending. This alone can determine your answer

Again, there is no graph provided so it is up to you to determine if it is Option A or B.

I really hope this helps and you have a great rest of your day!

Note: I am not a professional educator so take my opinion carefully.

=)

Other Questions
You are standing 30 m due east of a 50 kg person who is running at a speed of 20 m/s due west. What is the magnitude of that person's angular momentum about you (in units of ) In which of these states is the age of consent 18 years old?WA16MT16ME16OR18MA16ID18WY18NV16RI 16CT 16NJ 16DE 18MD 16UT18CA1816 WNHNDVT 1618MN16SD16WINY1618MI1716NEIAPA1716OH 16IL IN17 16KSMO1616 17 KY 1618NCOKTN 1816ARSC16AL16MSGA16LA16TX161717FL181716AZ18NM17HI16AK16Age 16Age 17Age 18A. North CarolinaB. Florida please help me it's important how did the 2nd industrial revolution affect class structure Consider the following conversation.Paul: Alsafat telling a lie.Alsafat: I am telling a lie.Emman: Paul telling a lie.Suppose that exactly one of them telling a truth. Who is telling a truth? PLZ HELP (SCIENCE) Match the following items.1. a reaction that releases energy decomposition 2. a reaction that takes in energy endothermic 3. chemical change whereby a molecule breaks down into simpler molecules or elements exothermic 4. written underneath or below oxidation 5. a chemical change resulting from a reaction with oxygen subscript 6 divided by 20 write your answer in a decimal form Please and thank youuuuuu! :) PLS HURRY!!! NO LINKS, NO STEALING POINTS, AND NO USELESS ANSWERS OR YOU WILL BE REPORTED!!!!!!What type of triangle is this? Does anyone know how to play this? I need it for a band assignment and I cant figure it out! Giving Brainly I really really need help! Brand equity is? Students were asked to summarize the main idea of the third paragraph of the passage.Which is most accurate and impartial?AStudent 1: Osamu Tezuka owed his success to Walt Disney movies.BStudent 2: Osamu Tezuka enjoyed exaggerating the eyes of thecharacters he drew so that they looked more like Walt Disney characters.Student 3: Osamu Tezuka developed a style of drawing that had a long-term effect on manga.DStudent 4: Osamu Tezuka needed to invent a drawing style that clearlyshowed the emotions of his characters. The recipe for Nestle Tollhouse Chocolate Chip Cookies calls for 22 cups of chocolate chips to make 55 dozen cookies. If you want to bake 99 dozen cookies, how many cups of chocolate do you need? What continent is being shown on the map? What is Revenue?What is Expense? A cylindrical tank with radius 5 m is being filled with water at a rate of 3 m^3/min. How fast is the height of the water increasing FREE-POINTS Find xx+3=5 Choose one of the two prompts below. Based upon your choice, write a 5-6 paragraph argumentative essay. Prompt #1:Choose an aspect of the struggle for equality and/or equal representation (i.e. political equality, racial equality, gender equality, etc.) from any of the previous texts we have read and make an argument in its favor using 2-3 examples from any of the materials from this course (such as What the Fourth of July Means to Me, Civil Disobedience, Aint I a Woman, An Indians View of Indian Affairs, etc.)OrPrompt #2:Consider the difference in philosophy between Bright Romanticism (Emerson, Thoreau, and Whitman) and Dark Romanticism (Hawthorne, Melville, Poe, and Dickinson) from any of the previous texts we have read and consider their underlying premise of the inherent hopefulness or hopelessness of human nature. Is the human experience more positive or negative? Is humanity hopeful or doomed? Make an argument for one or the other using 2-3 examples from any of the materials from this course.Be sure to include the following:A central thesisA counterclaim and rebuttalEvidence that supports your claim that is properly cited (see MLA guidelines)PLEASE HELP i have my final in three days and i need to get 9h of work caught up before then WILL MARK AS BRAINLIEST A copy machine makes 32 copies per minute. How long does it take to make 144 copies?????? flexibility exercises are specific to what