Q.23.
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Refer to ( Q 2 ) :
https://www.meritnation.com/ask-answer/question/multi-correct-ans-type-q-q-y-tan-1-2tan-2-y-tan-1-1-3t/inverse-trigonometric-functions/5567408
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Refer to ( Q 2 ) :
https://www.meritnation.com/ask-answer/question/multi-correct-ans-type-q-q-y-tan-1-2tan-2-y-tan-1-1-3t/inverse-trigonometric-functions/5567408
Do let us know in case of any further concerns .