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 54 is the correct answer
LxWxH
Answer:
Figure B
Step-by-step explanation:
For this specific equation the answer is x - 2
152.30(0.15) = 22.845
Round 22.845 to $22.85
So the answer is C. (:
Hope this was helpful!