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If the tangent at (x1,y1) to the curve x...

If the tangent at `(x_1,y_1)` to the curve `x^3+y^3=a^3` meets the curve again in `(x_2,y_2),` then prove that `(x_2)/(x_1)+(y_2)/(y_1)=-1`

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CENGAGE-APPLICATION OF DERIVATIVES-Solved Examples And Exercises
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