Answer:
False
Step-by-step explanation:
2cos^2(4x) - 1 = cos(8x)
cos(8 *pi/12) = cos(2pi/3) = cos(pi - pi/3) = - cos(pi/3)= 1/2, which is not 0
cos(8x) = 0
==> 8x = 0 or pi
==> x = 0 or pi/8
The midpoint is the average of the coordinates of the endpoints.
M = (A + B)/2 = ((1+7)/2, (3+8)/2) = (4, 11/2)
The midpoint of AB is (4, 11/2).
Answer:
less than
Step-by-step explanation:
Answer:
n > 2
Step-by-step explanation:
6n+12<8+8n
-6n -8 < -8 -6n
4 < 2n
2< n
Answer:
Step-by-step explanation:
100 - 50 3/8 = 49 5/8
18 - 15 3/4 = 2 1/4
5 2/5 + 2 3/5 = 7 + 5/5 = 8