Question

4. Choose the correct option. Justify your choise
(1) 9 sec? A - 9 tan’ A =
(A) 1
(B) 9
(C) 8
(D)0
(2) (1 + tan 8 + sec ) (1 + cot 8 - cosec ) =
(A) 0
(B) 1
(c) 2
(D)-1
(3) (sec A+tan A) (1 - sin A) =
(A) sec A
(B) sin A
(C) cosec A
(D) cos A
(4)1 +tan^2 A÷1 + cot^2 A=
(A) sec^2 A
(B) - 1
(0 cot^2A
(D) tan^2A
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Answer 1

Answer:

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