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34.Prove 1+cos theta=2costheta/2
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![If frac { sin { theta } }{ 1-cos { theta } } +frac { sin { theta } }{ 1+cos { theta } } =4[0<theta <90],then the value of theta](https://search-static.byjusweb.com/question-images/toppr_invalid/questions/1973505_1510216_ans_764187e2080542a8b24b5eb999cc7709.jpeg "If frac { sin { theta } }{ 1-cos { theta } } +frac { sin { theta } }{ 1+cos { theta } } =4[0<theta <90],then the value of theta")
If frac { sin { theta } }{ 1-cos { theta } } +frac { sin { theta } }{ 1+cos { theta } } =4[0<theta <90],then the value of theta
SOLVED: Formulas: 1. 13 sin x + cos x = 1 - cos(2x) - 2sin x = 2 - 1 + cos(2x) - 3cos x = 2. 2. 4 sin(2x) = 2sin
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