Question

(sin3A/sinA)-(cos3A/cosA)=2

Answer 1

Answer:

ans is 10

Step-by-step explanation:

(3sina-4sin^3a)/sina-(4cos^3a-3cosa)/cosa

sina(3-4sin^2a)/sina-cosa(4cos^2a-3)/cosa

3-4sin^2a-4cos^2a+3

6+4(sin^2a+cos^2a)

6+4

10