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If tanA-tan B=x, and cot B-cotA=y, then ...

If `tanA-tan B=x`, and `cot B-cotA=y`, then find the value of `cot(A-B)`.

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The correct Answer is:
`=(1)/(x)+(1)/(y)`.
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE-MCQs
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