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Question

Prove the following trigonometric identities.

(i) 1+sin A1-sin A=sec A+tan A

(ii)

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Solution

(i) We need to prove

Here, rationalising the L.H.S, we get

Further using the property, , we get

So,

Hence proved.

(ii) We need to prove

Here, rationaliaing the L.H.S, we get

Further using the property, , we get

So,

Hence proved.


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