If x=a(1-cos^3theta) , y=a\ sin^3theta ,...

If `x=a(1-cos^3theta)` , `y=a\ sin^3theta` , prove that `(d^2y)/(dx^2)=(32)/(27\ a)` at `theta=pi/6` .

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RD SHARMA ENGLISH-HIGHER ORDER DERIVATIVES-All Questions

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