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
Vesna [10]
3 years ago
10

Complete the identity sin(2θ) sin(4θ) cos(2θ) cos(4θ) = ?

Mathematics
1 answer:
Novay_Z [31]3 years ago
4 0

Answer:

Step-by-step explanation:

Factor the left hand side as a difference of squares:

(

cos

2

θ

+

sin

2

θ

)

(

cos

2

θ

−

sin

2

θ

)

=

cos

2

θ

−

sin

2

θ

Apply the pythagorean identity  

cos

2

θ

+

sin

2

θ

=

1

:

1

(

cos

2

θ

−

sin

2

θ

)

=

cos

2

θ

−

sin

2

θ

cos

2

θ

−

sin

2

θ

=

cos

2

θ

−

sin

2

θ

L

H

S

=

R

H

S

Hopefully this helps!

You might be interested in
Divide. Give the quotient and remainder.<br> 33 - 8<br> :))))
Ilya [14]
Answer: 9 remainder 2

Explanation: 9 is the closest 6 can get to 56 without going over. Since 9•6=54, and 56-54=2 , 2 is the remainder.
3 0
3 years ago
Read 2 more answers
Help please I really can’t fail this exam
shtirl [24]
Answer:E'F' and EF are equal in length.
7 0
3 years ago
What is 85% of 2500 meters
ladessa [460]
<span>2500*0.85=2125 meters</span>
4 0
3 years ago
If 40% is eliminated from 500 what is left over?
DIA [1.3K]

Answer:

300

Step-by-step explanation:

6 0
3 years ago
√72 what is the non-perfect simplefied square root radical
Lostsunrise [7]

For simplifying radicals, remember the product rule of radicals: √ab = √a x √b . This radical is simplified as such:

√72 = √9 x √8 = 3 x √4 x √2 = 3 x 2 x √2 = 6√2

In short, the simplified radical of √72 is 6√2.

5 0
3 years ago
Other questions:
  • Which of these is an example of employment ?
    11·1 answer
  • F(x)= <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%207%7D%7B10%7D%20" id="TexFormula1" title=" \frac{4x - 7}{10} "
    8·1 answer
  • Find the average value of y equals the square root of the quantity 64 minus x squared, on its domain.
    10·1 answer
  • Which choice shows the sum of the two vectors&lt;-2 ,0&gt; and &lt;4,-5&gt; written as an ordered pair
    12·1 answer
  • Morgan uses 2 oz of dog shampoo to bathe her dog each week. After 4 wk, 34 oz of shampoo remains.
    7·1 answer
  • List the solvent and solute(s) in the scenarios below.<br> A solution of 32% ethanol and 68% water
    12·1 answer
  • Please help, I’m confused
    6·1 answer
  • Plz help me if ur still awake!!!!
    10·1 answer
  • In 2004 there were 16000 kidney transplants
    15·1 answer
  • PLEASE HELP ME!!!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!