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Prove that secA (1-sinA) (secA+tanA) = 1 |
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Answer» secA(1-sinA)(secA+tanA) = (1/cosA)(1-sinA)(1/cosA+sinA/cosA) = (1/cos²A)(1-sinA)(1+sinA) = (1/cos²A)(1-sin²A) = (1/cos²A)(cos²A) = 1 = RHS Step-by-step EXPLANATION: please Mark me as brainlist |
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