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Proving trigonometry identities

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Prove

1-sinx/1+sinx=sec^2x-2secxtanx + tan^x

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Solution Summary

This solution provides a 9-step solution in proving a trigonometric identity.

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=> 1- sinx/ 1+sinx
=>(1/ 1+sinx) - (sinx /1+sinx)
=> (1(1-sinx)/ (1+sinx)(1-sinx) ) -( ...

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