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Prove that all points on the curve y^(2)...

Prove that all points on the curve `y^(2)=4a[x+a sin((x)/(a))]` at which the tangent is parallel to the X - axis lie on the parabola `y^(2)=4ax`.

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KUMAR PRAKASHAN-APPLICATION OF DERIVATIVES -PRACTICE WORK
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  3. Prove that all points on the curve y^(2)=4a[x+a sin((x)/(a))] at which...

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