Can anyone solve this? Prove cos A / sin B - sin A / cos B = 2 cos (A+B) / sin 2B
1 Answer
Apr 30, 2018
Prove
Multiply the first term by 1 in the form of
Multiply the second term by 1 in the form of
Combine the two terms over the common denominator:
Use the identity
Multiply by 1 in the form of
Use the identity