Please solve this question.
Q) Prove that
tanA 1-cotA + cotA 1-tanA =secA.cosecA+1

Here is the answer to your question.
Hence, the result is proved.

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Here you go!

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A lot of thanks to you, Avaneesh!
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But how does it become sin^3 and cos^3 in the 4th step??
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What are you looking for?