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If x and y are connected parametrically ...

If x and y are connected parametrically by the equations given in Exercises 1 to 10, without eliminating the parameter, Find `(dy)/(dx)`.
`x= a(theta-sin theta), y= a (1+ cos theta)`.

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The correct Answer is:
`-"cot" (theta)/(2)`
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KUMAR PRAKASHAN-CONTINUITY AND DIFFERENTIABILITY-Exercise-5.6
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