The gradient vector is a vector whose first component is the derivative of f(x, y) with respect to x and the second is the derivative of f(x, y) with respect to y.

Here f(x, y) = x^3*y^2 - 2x

derivative with respect to x is 3x^2*y^2 - 2

derivative with respect to y is 2y*x^3

At the point (2, 4)

3x^2*y^2 - 2 = 3*2^2*4^2 - 2 = 190

2y*x^3 = 64

**The required vector is < 190 , 64>**

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