2cosx=2sin2x. Sin2x is an identity for 2sinxcos. So 2[2sinxcosx] gives you 4sinxcosx. 2cosx=4sinxcosx. Divide 2cosx on both sides and gives you 2sinx=0 and divide again, sinx=0. Sinx is 0 at 0 and 360 degrees, or pi and 2pi. So thats what x would be. 0,360,pi,2pi.
Answer:
11
Step-by-step explanation:
<u><em>SUBTRACT</em></u>
Answer:
Y-intercept: 2 Slope: -3 so... A.
Step-by-step explanation:
The Awsner is A.
Answer:
Option C.
Step-by-step explanation:
