Question

prove that sinA -2 sin³A / 2cos³- cosA = tanA​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

sinA(1-2sin²A)/cosA(2cos²A-1)

sinA (1-2(1-cos²A)/cos A(2cos²A-1)

sin A(1-2+2cos²A)/cosA(2cos²A-1)

sinA(-1+2cos²A)/cos A(2cos²A-1)

sinA/cosA=tanA