Question

Solve plz ...the above pic given .plz. solve

Answer 1

Since sinA and cosA are equal,

tanA=sinAcosA=1
sec2A=1+tan2A
In fact, for any real values of A, we have tan2A−sec2A=−1 by rearranging the Pythagorean identity.

As such, the required result is −2+5=3 regardle

Answer 2

A=45 ; since Sin A = Cos A
so on substituting
2*1 -2*2 +5
=3