Question

please slove it argent

Answer 1

it is the best solution

you hope

follow

Answer 2

Answer:

Step-by-step explanation:

LHS = cos^2 A + tan^2 A - sin^2 A - cos^2 A / sin^2 A

       = tan^2 A - sin^2 A / sin^2 A

       = 1/cos^2 A - 1

       = sec^2 A - 1

       = tan^2 A = RHS

LHS = RHS

Hence, proved.