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Rajan@2021
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Asked: 2021-04-04T17:43:25+05:30 In:

If tan θ =20/21, show that (1-sinθ+cosθ) /(1+sinθ+cosθ)= 3/7

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This is the basic and conceptual question from trigonometric ratios in which we have to prove that  (1-sinθ+cosθ) /(1+sinθ+cosθ)= 3/7, if  tan θ =20/21.

RS Aggarwal, Class 10, chapter 10, question no 12.

cbse class 10rs aggarwal solutiontrigonometric ratios
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    1. Guru
      If tan θ =20/21, show that (1-sinθ+cosθ) /(1+sinθ+cosθ)= 3/7

      Hope it helps you…

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