What is the extreme f(x,y)= 4/(sqrt(x+y)) ?

The extreme f(x,y)= 4/(sqrt(x+y)) is None

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extreme f(x,y)= 4/(sqrt(x+y))

extreme points

f (x, y) = \frac{4}{x + y}

None

Solution steps

Find the critical points:

None

\frac{4}{x + y}

has no critical points, therefore there are no extreme points

None

f (x) = - x^{2} + 9, - 3 \leq x \leq 4

f (x) = x^{4} + y^{4} - 4 x y + 2

(7 x - 3)^{2}

f (x) = 20 x y - x^{3} - 10 y^{2}

f (x) = \frac{12 x - 3 - 3 x ^{2}}{x}

What is the extreme f(x,y)= 4/(sqrt(x+y)) ?
The extreme f(x,y)= 4/(sqrt(x+y)) is None