# math

posted by
**enigma**
.

A function of two variables is given by,

f (x,y) = 4x^3 + 7xy^4 - 5y^2 + 8

Determine, fxx + fyx at x = 4.25 and y = 3.69,

giving your answer to 3 decimal places.

posted by
**enigma**
.

A function of two variables is given by,

f (x,y) = 4x^3 + 7xy^4 - 5y^2 + 8

Determine, fxx + fyx at x = 4.25 and y = 3.69,

giving your answer to 3 decimal places.