Question

If
$\frac{1 - \ { \sin }^{2}a }{ \ { \cos }^{2} } = \tan \: a$
,then the value of A is ____________​

Answer 1

Step-by-step explanation:

1-sin²a/cos²a=tan a

cos²a/cos²a=tan a

1=tan a

tan 45°=tan a

a=45°

Answer 2

answer of the this question