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04-04-2014
Mathematics

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THE EXPRESSION (TAN THETA) (CSC THETA) IS EQUAL TO?

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Аноним Аноним

06-04-2014

[tex]tan\theta\cdot csc\theta=\frac{sin\theta}{cos\theta}\cdot\frac{1}{sin\theta}=\frac{1}{cos\theta}=sec\theta[/tex]

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