Question: Consider the functionf(x,y)=4/(x^2+y^2+16) List all critical points off(x,y). If there are none, enter none. List all critical points off(x,y)which are local maxima . If there

Consider the functionf(x,y)=4/(x^2+y^2+16)

List all critical points off(x,y). If there are none, enter "none".

List all critical points off(x,y)which arelocal maxima. If there are none, enter "none".

List all critical points off(x,y)which arelocal minima. If there are none, enter "none".

List all critical points off(x,y)which aresaddle points. If there are none, enter "none".

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