Question

if m is equal to Cos A upon cos B and n is equal to Cos A upon sin b show that n square + sin square into cos square b is equal to n square

Answer 1

m = cosA/cosB

n = cosA/sinB

To Prove that :

${n}^{2} + {sin}^{2} \times {cos}^{2} b = {n}^{2}$
do u want this

if we have to prove this than the eqn. stated in to prove is wrong

plzz make it correct