Choose the correct option- Justify your choice- 9 2 A-9tan 2 A-

The correct option is B 9 We know, #160; 1= ^2A tan^2A ∴ 9(^2A tan^2A) #160; =9× 1=9 ...

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Trigonometric Identities

Choose the co...

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Choose the correct option. Justify your choice.
$9 {sec}^{2} A - 9 {tan}^{2} A =$

1

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9

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8

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0

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9 s e c^{2} A - 9 t a n^{2} A =

9 {sec}^{2} A - 9 {tan}^{2} A =

9 s e c^{2} A - 9 t a n^{2} A =

Choose the correct option. Justify your choice.

(i) $9 {sec}^{2} A - 9 {tan}^{2} A =$

(A) $1$

(B) $9$

(D) $0$

(ii) $(1 + tan θ + sec θ) (1 + cot θ - cosec θ)$

(A) $0$

(B) $1$

(D) $- 1$

(iii) $(sec A + tan A) (1 - sin A) =$

(A) $sec A$

(B) $sin A$

(D) $cos A$

(iv) $\frac{1 + {tan}^{2} A}{1 + {cot}^{2} A} =$

(A) ${sec}^{2} A$

(B) $- 1$

(D) ${tan}^{2} A$

\frac{1 + {tan}^{2} A}{1 + {cot}^{2} A} =

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