Question

sinA -2 sin³A/2 cos³A - cosA =tan A​

Answer 1

Answer:

Tan A

Step-by-step explanation:

sinA- 2 sin³A/2 cos³A-cosA

sin A -(1-2 sin² A)/cos A (2 cos²A-1)

as we know sin²A= 1-cos²A

tanA*(2cos²A-1)/(2cos²A-1)

tanA , hence proved