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
lana66690 [7]
3 years ago
5

Verify the identity by transforming the left-hand side into the right-hand side.

Mathematics
1 answer:
qaws [65]3 years ago
8 0
<span>(1 + cos² 3θ) / (sin² 3θ) = 2 csc² 3θ - 1

Starting with the left:  Note that  cos²θ + </span><span>sin²θ = 1.
In the same way:    </span><span>cos²3θ + <span>sin²3θ = 1
</span></span>Therefore                cos²3θ  = 1 - <span>sin²3θ
</span> From the top:  (1 + cos² 3θ) = 1 + 1 - sin²3θ = 2 - <span>sin²3θ
</span>
(1 + cos² 3θ) / (sin² 3θ) = (<span>2 - sin²3θ) / (sin² 3θ) = 2/</span><span>sin² 3θ - </span><span>sin²3θ/</span>sin²3θ

=  2/<span>sin² 3θ - 1;        But 1/</span><span>sinθ = csc</span><span>θ,  Similarly  </span>1/sin3θ = csc3θ

= 2 *(1/sin<span>3θ)²  - 1</span>
= 2csc²3θ  - 1.        Therefore  LHS = RHS.  QED.

You might be interested in
Find the measure of each internal angle of the triangle!!!!!​
defon

Answer:

x=35

'x-10'=25 degrees

'x'=35 degrees

The last one is 120 degrees

Step-by-step explanation:

A straight line is 180 degrees

180-60=120

2x+110=180

2x=70

x=35

8 0
3 years ago
Mark wants to know how many families in neighborhood plan to attend the neighborhood party
maria [59]

Answer:

is this an actual question? or you jus sayin stuff

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Type the next term in the sequence. 15, 12, 9, 6,
AveGali [126]

Answer:

3

Step-by-step explanation:

It's decreasing by 3 each time, so the next number in the sequence would be 6 - 3, which is 3.

6 0
2 years ago
Read 2 more answers
Jade bought an airplane ticket to New York for $600. Her brother bought a ticket later that same week for $618. The price increa
STALIN [3.7K]

Answer:

the answer to the question is 3%

3 0
2 years ago
A baker made 20 pies. a boy scout troop buys one–fourth of his pies, a preschool teacher buys one–third of his pies, and a cater
aleksklad [387]
One-fourth + one-sixth + one-third

<span>three plus two plus four /12 = 9/12 = 3/4 </span>

<span>So, balance = 1/4 = 1/4 times 20 = 5 pies which is the answer!

Hope this helps!! Pleaseeee,         Hit that Thanks button ;D</span>
7 0
3 years ago
Other questions:
  • Who walks at a faster rate: someone who walks 60 feet in 10 seconds or someone who takes 5 seconds to walk 25 feet?
    7·1 answer
  • Check all that apply. Thanks!
    11·1 answer
  • 2(y + 5) = 18 - 12
    13·1 answer
  • You ask only the members of your family that you can contact by phone what their favorite holiday is. Is this a census?
    5·1 answer
  • Question 3-17 i really stink at math :( it just doesnt make sense to me. alsi im failing. plz help
    15·1 answer
  • Standard form of 0=2-y
    11·2 answers
  • 1) Solve 2 + 7x + 12 = 0 using factoring and the zero product property.
    5·1 answer
  • Vanessa earned $76.00 in 8 hours. How much did she earn per hour?
    6·2 answers
  • I neep help!!! what is the answer???
    15·2 answers
  • Tính kết quả \sqrt[3]{1}
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!