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Deepak Bora
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Asked: 2020-07-26T22:22:59+05:30 In:

Prove that : { ( sin° / (cot° + cosec° ) ) } = 2 + { ( sin° / ( cot° – cosec° ) ) }

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CBSE 10th Class past year question paper

Year 2019

SET 1, Code Number- 30/2/1

Question number – 28(b)

cbse class 10thncert class 10thprevious year paper
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    1. Newbie
      This answer was edited.
      Prove that : { ( sin° / (cot° + cosec° ) ) } = 2 + { ( sin° / ( cot° – cosec° ) ) }

      using cos, sin, tan and cot relation.

      We take lcm of both sides and solve putting cosec 2 x – cot 2 x = 1

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