Using Sin^2 and Cos^2 identities,
= Cos^2(2A) + 4[(1/2)(1-Cos(2A)][(1/2)(1+Cos(2A)] = 1
= Cos^2(2A) + 1 -Cos^2(2A) = 1
0 = 0
There is nothing to solve for as it is an identity of sorts.
Answer:
6m^2
Step-by-step explanation:
1/2×2(2+4)
1/2×2×6
=6m^2
The probability is 2/9 because there are 9 marbles and 2 marbles were pulled out. hope I helped XD
Answer:
im pretty sure A. correct me if im wrong please
Step-by-step explanation: