Question

if z= 2x^2 + 3 y^2 then the calue of dz/dx at x= 1 and y= 3 is​

Answer 1

hey bro here is youur answer

Answer 2

$z = {2x}^{2} + 3 {y}^{2} \\ \\ \frac{dz}{dx} = 4x + 6y \frac{dy}{dx} \\ \\ at \: x = 1 \: and \: y = 3 \\ \\ \frac{dz}{dx} = 4 + 18 \frac{dy}{dx}$

This is the answer. Hope it helps