Answer:
Option C.
Step-by-step explanation:
The given expression is
It can be rewritten as
According to De moivre's Theorem:
![[r(\cos\theta+i\sin \theta)]^n=r^n(\cos n\theta +i\sin n\theta)](https://tex.z-dn.net/?f=%5Br%28%5Ccos%5Ctheta%2Bi%5Csin%20%5Ctheta%29%5D%5En%3Dr%5En%28%5Ccos%20n%5Ctheta%20%2Bi%5Csin%20n%5Ctheta%29)
Using De moivre's Theorem, we get
Therefore, the correct option is C.
Answer:
I don't see photo...........
1) D.
2) I’d need the AM or PM to tell unless it’s world clock.
3) C.
4) A.
5) B.
6) A.
7) Can’t see the thermometer.
8) B. and C.
I didn't really know whether to do it from least to greatest or greatest to least, so I did it from least to greatest.
Steps:
1. Find a common denominator
Let's do 12
2. Convert
7/12 is already in its simplest form, so 2/3 = 8/12 and 3/4 = 9/12
3. Order
7/12, 8/12, 9/12
4. Back to original form
7/12, 2/3, 3/4
ANSWER: 7/12, 2/3, 3/4
Answer:
θ = π n + π/2 for n element Z
Step-by-step explanation:
Solve for θ:
1 + 2 cos(2 θ) + cos^2(2 θ) = 0
Write the left hand side as a square:
(cos(2 θ) + 1)^2 = 0
Take the square root of both sides:
cos(2 θ) + 1 = 0
Subtract 1 from both sides:
cos(2 θ) = -1
Take the inverse cosine of both sides:
2 θ = 2 π n + π for n element Z
Divide both sides by 2:
Answer: θ = π n + π/2 for n element Z
