Question

cos 2q cos 2f + sin2 (q - f) - sin2 (q + f) is equal to
O a, sin 2 (q + f)
O b. cos 2 (4 + f)
O c. sin 2 (q - f)
O d. cos 2 (q - f)​

Answer 1

Answer:

O d. cos 2 (q - f) is answer dear friend

Answer 2

Answer:

None of the above

statement wrong