Question

If sinA+cosA= m and sin^3A+cos^3A= n then which is correct:

a) m^3+3m+2n=0

b) n^3-3n+2m=0

c) m^3-3n+2n=0

d) m^3-3m+2n=0

Answer 1

But i'm not sure

ho sakta hai isdka right answer koi aur dede............tx