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Mathematics, 04.05.2021 14:00 noname5359

17. Prove that:
1 -- secA + tanA / 1 + Sec A – tan A =
SecA + tanA – 1 / secA + tanA + 1​

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17. Prove that:
1 -- secA + tanA / 1 + Sec A – tan A =
SecA + tanA – 1 / secA + tanA + 1​...
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