What is the extreme f(x)=-4\sqrt[4]{x^2+y^2+81} ?

The extreme f(x)=-4\sqrt[4]{x^2+y^2+81} is Maximum(0,0)

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extreme f(x)=-4\sqrt[4]{x^2+y^2+81}

extreme points

Maximum (0, 0)

Solution steps

Find the critical points:

(0, 0)

Check the sign of at each critical point

Check critical point

(0, 0) :

Maximum

Maximum (0, 0)

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f (x) = x + \frac{4}{x}, 1 \leq x \leq 10

2 θ - 3 sin (θ)

What is the extreme f(x)=-4\sqrt[4]{x^2+y^2+81} ?
The extreme f(x)=-4\sqrt[4]{x^2+y^2+81} is Maximum(0,0)