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If ysqrt(1-x^2)+xsqrt(1-y^2)=1 , then pr...

If `ysqrt(1-x^2)+xsqrt(1-y^2)=1` , then prove that `dy/dx=- sqrt((1-y^2)/(1-x^2))`

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JMD PUBLICATION- A Gift paper from the publishers-Example
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