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If `x = sin theta, y = sin^(3) theta` then `(d^(2)y)/(dx^(2))` at `theta = (pi)/(2)` is …….
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If `x = sin theta, y = sin^(3) theta` then `(d^(2)y)/(dx^(2))` at `theta = (pi)/(2)` is …….
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