Question

1)
$9 {sec}^{2} a - 9ta {n}^{2} a = \\ 1)1 \\ 2)9 \\ 3)8 \\ 4)0$
plz solve this

Answer 1

Hii dear ....


HØPE IT HELPS YOU.!! ☺☺

Answer 2

Hey mate!! HERE is your answer.....

The correct option is 2-9(ans)

PROCESS:-
9sec²A-9tan²A
=9(sec²A-tan²A)
=9(1)
=9

identity used...

Sec²A-tan²A=1

Hope it helps you.

^_^