Let f(x,y)= 3- x^2/10+(xy^2)/10 . compute: a.) “del” ( upsidedown delta)f(3,-1) b.)D (sub)u f(3,-1), where u=

Question

Let f(x,y)= 3- x^2/10+(xy^2)/10    . compute:  a.) “del” ( upsidedown delta)f(3,-1)  b.)D (sub)u f(3,-1), where u=<3,4>

amistre64 · Answer

$$\nabla f=<f_x,f_y>$$

amistre64 · Answer

hard to say how to proceed tho since i cant get a good read on your f(x,y)

amistre64 · Answer

thats interesting, the gradient point to the local maximum of the function; so if you follow the direction of the gradient you reach teh maximum

amistre64 · Answer

anonymous · Answer

$$ 3- (x^2/10)+((xy^2)/10)$$