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Which of the following statements is/are correct? 1. cos2A = 1+tan2A1−tan2A 2. cosec2A = 1 + cot2θ 3. sec2θ = 1 + cos2θ |
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Answer» Which of the following statements is/are correct? 1. cos2A = 1+tan2A1−tan2A 2. cosec2A = 1 + cot2θ 3. sec2θ = 1 + cos2θ |
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