Answer:
32
Step-by-step explanation:
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:
= -1.8f-19
Step-by-step explanation:
- Add the similar elements which would give you -1.8f-15-4
- Then subtract -15-4 which gives you -19