But What If $\sin A \cos A = 0$ ?

Geometry Level 2

$\large (1 + \cot A - \csc A )(1 + \tan A + \sec A )$

If $A$ can be any angle such that $\sin A \cos A \ne 0$ , simplify the trigonometric expression above.

But What If sin⁡Acos⁡A=0\sin A \cos A = 0sinAcosA=0?