What is the extreme f(x,y)=sqrt(y)+sqrt(9-x^2-y^2) ?

The extreme f(x,y)=sqrt(y)+sqrt(9-x^2-y^2) is None

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extreme f(x,y)=sqrt(y)+sqrt(9-x^2-y^2)

extreme points

f (x, y) = y + 9 - x^{2} - y^{2}

None

Solution steps

Find the critical points:

None

y + 9 - x^{2} - y^{2}

has no critical points, therefore there are no extreme points

None

f (x) = - x^{2} + 160 x - 400

x^{2} - 4 x

x^{y}

f (x) = x 3 + x

F (x, y) = x^{2} + x^{2} y + y^{2} + 1

What is the extreme f(x,y)=sqrt(y)+sqrt(9-x^2-y^2) ?
The extreme f(x,y)=sqrt(y)+sqrt(9-x^2-y^2) is None