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Rajan@2021
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Prove that: Sin 70°/cos 20° + cosec 20°/sec 70°- 2cos 70° cosec20° = 0

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This question is from trigonometry

Topic Trigonometric ratios on complementary angles

We have to prove that Sin 70°/cos 20° + cosec 20°/sec70° – 2cos70° cosec20° = 0

RS Aggarwal, Class 10, chapter 12, question no 3(i)

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