Question

Find dy dx2 y= 5x4 - 6x2 +4 O 20X2-12 60x2 - 12x O 60x2 - 12 0 20x2 - 12x

Answer 1

You have to differentiate y twice with respect to x

Step 1: differentiate the function with respect of x

$\frac{dy}{dx}=20x^3-12x$

Step 2: differentiate the function with respect to x again

$\frac{d\square^2y}{dx^2}=60x^{2}-12$

So d²y/dx²=60x²-12