Question

Pls solve me that prove that !

Answer 1

wait i m doing..................

Answer 2

We know that

Sin^3@ + cos^3@ = (sin@ + cos@)(1 - sin@cos@)

Now

LHS

(sin^3@ + cos^3@ )/(sin@ + cos@) + sin@cos@

on putting the above value

1 - sin@cos@ + sin@cos@

1

Hence

LHS = RHS