Question

solve it please
1-8sin2B*cos2B

Answer 1

Answer:

STEP 1: Everything is already in sin and cos, so this part is done. STEP 2: Since there are no sums or difference inside the angles, this part is done. STEP 3: cos(2x) is a double angle. Use the double angle formula: cos (2x) = cos2(x) – sin2(x), to simplify.