Eavluate the gradient vector at the given point. a) f(x,y) = cos2(πxy) at (1,-1) b) f(x,y,z) = xeyz at (2,1,0)
Eavluate the gradient vector at the given point.
a) f(x,y) = cos2(πxy) at (1,-1)
b) f(x,y,z) = xeyz at (2,1,0)
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