shrutichill Answered 11 minutes ago but I need more help with the solution please:

I do not understand how you got 17.3x3 = 5.1

5.1W²

Explanation:

Z = 1.7*W³ ----------------- (1)

Differentiation of equation 1 w.r.t. W, will give,

dZ/dW = 1.7*3*W²

17.3 x 3 = 5.1

then W^3-1 gives W²

hence

dZ/dW = 5.1*W²