Question

solve this example 13 of trigonometry class 10​

Answer 1

pls mark it as brainlist

Answer 2

Hey mate ☺

$\sec \: a(1 - \sin \: a)( \sec \: a + \tan \: a = \frac{1}{ \cos \: a } (1 - \sin \: a)( \frac{1}{ \cos \: a } + \frac{ \sin \: a}{ \cos \: a } \\ = \frac{(1 - \sin \: a)(1 + \sin \: a }{ { \cos }^{2} \: a} \\ \frac{(1 - { \ \sin }^{2} a)}{ { \ \cos }^{2} \: a} \\ = \frac{ { \cos }^{2}a }{ { \cos }^{2}a } \\ = 1$

L.H.S.=R.H.S

Hope it helps you ☺✌✌