sin3A/sinA -cos3A/cosA
Answers
Answered by
1
Answer
Step-by-step explanation:
sin^3A/sinA - cos^3A/cosA
= (sin^3A*cosA - cos^3A*sinA)/sinA.cosA
= sinA.cosA(sin^2A - cos^2A)/sinA.cosA
= sin^2A - cos^2A
= (sinA + cosA) (sinA - cosA)
Similar questions