Question

(1/cos a + sin a- 1) + (1/ cos a + sin a +1)

Answer 1

Step-by-step explanation:

We have,

$\rm \bigg( \dfrac{1}{\cos A} + \sin A -1\bigg) +\bigg( \dfrac{1}{\cos A} + \sin A -1\bigg)$

$\rm \implies 2 \bigg( \dfrac{1}{\cos A} + \sin A -1\bigg)$

We know that,

$\boxed{ \: \: \rm \dfrac{1}{\cos A} = \sec A \: \: }$

$\rm \implies 2 \bigg( \sec A + \sin A -1\bigg)$