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If sin A = 3/4 , calculate sec A

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CBSE 10th Class past year question paper

Year 2019

SET 1, Code Number – 30/2/1

Question number – 4 (b)

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  1. This answer was edited.

    sin A = 3/4

    sin² A + cos² A = 1

    cos A = √ { 1 – ( 9/16) }

    cos A = √7/4

    sec A = 4/√7

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