1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
3241004551 [841]
4 years ago
12

Verify the identity. cotangent x equals StartFraction 1 plus cosine 2 x Over sine 2 x EndFractioncot x= 1+cos2x sin2x Use the ap

propriate​ double-angle formulas to rewrite the numerator and denominator of the expression on the right. For the denominatordenominator​, use the​ double-angle formula that will produce only one term in the denominatordenominator when it is simplified.
Mathematics
1 answer:
lutik1710 [3]4 years ago
6 0

Answer with Step-by-step explanation:

We are given that

RHS

\frac{1+Cos2x}{Sin2x}

We have to verify the identity.

We know that

1+Cos2x=2Cos^2 x

Sin2x=2SinxCos x

Using the formula

\frac{2Cos^2x}{2SinxCosx}

\frac{Cosx}{Sinx}

Cot x

By using the formula

Cotx=\frac{Cosx}{Sinx}

LHS=RHS

Hence, verified

You might be interested in
PLEASE HELP !!! WILL MARK BRAINLIEST TO WHOEVER GETS IT RIGHT !!
erica [24]

Answer:

5th option

52° bc its alternating interior with 2.

added together they would equal 180°

7 0
3 years ago
Please i really need help <br> for both qeutions<br> 100 points
Luba_88 [7]

Answer:

7. a) slope = 5

7. b) slope = 1/2

8. slope = 1

Step-by-step explanation:

slope = rise/run

rise is the vertical change, run is the horizontal change

7. a)

Pick any two points on your line. (0,0) and (1,5) are easy to work with.

The vertical change between the two points is 5

The horizontal change between those points is 1

so slope = 5/1 = 5

7. b)

Again, you can use (0,0) as one of your points. The point (2,4) is good as the second.

slope = 4/2 = 1/2

8. We don't have a graph, but we are given two points to work with, (1,4) and (5,8). Use the formula given...

m = slope = (y2-y1) / (x2-x1)

= (8 - 4) / (5 - 1)

= 4/4

= 1

I hope that helped!

8 0
2 years ago
Rewrite the fraction in the sentence below as a percentage. In 2002, a popular company made 11/20 of its money online.​
Vladimir79 [104]

Answer:

55%

Step-by-step explanation:

11/20 = 0.55

0.55 = 55%

7 0
3 years ago
A factory produce bicycles at a rate of 110+0.5t^2-0.9t bicycles per week (t in weeks)
klasskru [66]

Answer:

221

Step-by-step explanation:

Day 8 is the first day of the second week.

Day 21 is the last day of week 3.

We need to know the n umber of bicycles made from t = 1 to t = 3

The function is b(t) = 110 + 0.5t^2 - 0.9t, where t is in weeks.

We need to integrate the function with the limits of 1 to 3.

\int_{1}^{3} (110 + 0.5t^2 - 0.9t) dt

\int_{1}^{3} (110 + \dfrac{t^2}{2} - \dfrac{9t}{10}) dt

= 110t + \dfrac{t^3}{6} - \dfrac{9t^2}{20} \Biggr|_{1}^{3}

= 330.45 - 109.72

= 220.7333

Answer: 221

3 0
3 years ago
Charlotte purchased a pool for $7680 using a six-month deferred payment plan with an interest rate of 20.45%. She did not make a
Georgia [21]
$7680:100%=$x:120.45%, 100x=7680*120.45, x=(7680*120.45)/100, x=$9250.56
Cost of the pool with interest rate is $9250.56.
3yr*12mo=36mo
$9250.56/36mo=256.96$/mo

<span> Charlotte's monthly payment will be $256.96.</span>
6 0
3 years ago
Other questions:
  • In first half of a basketball game one team scored 45 points. This was 5/9 of their score for the whole game. How many points di
    6·2 answers
  • Solve for y. Then find the values of y that correspond
    14·1 answer
  • Then find the area bounded by the two graphs of y=2x^2−24x+42 and y=7x−2x^2
    5·1 answer
  • Math plz help it's hard (8th grade math)
    7·2 answers
  • Select the inequality below that is one of the two inequalities used to solve: |3+2x|&lt;11
    10·1 answer
  • Rewrite the expressions using the division symbol and as a fraction.
    5·1 answer
  • The discount price of a pair of pants is $42. What is the regular price?
    7·2 answers
  • N^2-n/3=7 complete the square
    14·1 answer
  • The expression 8^x is equivalent to 32^y, where x and y are postive. what is the value of y/x
    13·1 answer
  • If the slope of a line is 7/10, how much vertical change will be present for a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!