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Rajan@2021
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Asked: 2021-04-04T18:44:59+05:30 In:

If sinα = 1/2, prove that (3cosα – 4cos^3.

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This is the basic and conceptual question from trigonometry in which we have been asked to show that (3cosα – 4cos^3α) = 0 if sinα =1/2.

RS Aggarwal, Class 10, chapter 10, question no 28.

class 10 cbsers aggarwaltrigonometric ratios
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    1. Guru
      If sinα = 1/2, prove that (3cosα – 4cos^3.

      Hope it helps you.

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