Question

(D) 0
4. Choose the correct option. Justify your choice.
( 9 sec A-9 tanA=
(A) 1
(B) 9
(C) 8
() (1 + tan + sec 0) (1 + cote-cosec 0) =
obi (A) 0
(B) 1
(C) 2
(ii) (sec A+tan A) (1 -sin A) =
(A) sec A (B) sin A (C) cosec A
(D) -1
(D) cos A
in 1+ tan² A
1 + cot² A
(A) sec A
(B)-1
5. Prove the following identiti
(C) cot? A
(D) tan? A​

Answer 1

Answer:

4.====9

Step-by-step explanation:

4...===9 ya answer