This is a two-part question. the gradient of a scalar field ϕ(x,y)=2x⁵y³+2x⁴+5y⁴ is given by F=∇ϕ(x,y)=([10x⁴y³+8x³],[6x⁵y²+20y³]). (a) calculate.
a) 10x⁵y³+8x⁴
b) 6x⁵y²+20y³
c) 2x⁵y³+8x³
d) 6x⁴y²+20y³