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Cos²∅(1+tan²∅) = 1plzzz answer me |
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Answer» Step-by-step EXPLANATION: cos^2Φ{1+tan^2Φ} 1+tan^2Φ=sec^2Φ..................(eq1) cos^2Φ(sec^2Φ) = 1 {1/cos^2Φ = sec^2Φ} hence proved |
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