Thread: A question about a differential

When Y = t^3 – 3t, and X = t^2 + t

What is differential d^2y/dx^2= ?

dy/dx = (dy/dt)/(dx/dt) = (3t^2 -3)/(2t+1)


d^2 (y)/dx^2 = d(dy/dx)/dx = [d(dy/dx)/dt] / [dx/dt]

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