What is the critical f(x)=(2x)/(sqrt(1+x^2)) ?

The critical f(x)=(2x)/(sqrt(1+x^2)) is None

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critical f(x)=(2x)/(sqrt(1+x^2))

critical points

f (x) = \frac{2 x}{1 + x ^{2}}

None

Solution steps

\frac{2 x}{1 + x ^{2}}

Find where

f^{'} (x)

is equal to zero or undefined

None

f (x, y) = x^{2} + y^{2} - x y + x^{3}

f (x) = 2 x^{4} (5 - x)^{7}

f (x) = 120 x^{2} - 15 x^{4}

f (x) = \frac{x}{x ^{2} + 13 x + 42}

\frac{2 x ^{2} - 2}{x ^{2} - 4}

What is the critical f(x)=(2x)/(sqrt(1+x^2)) ?
The critical f(x)=(2x)/(sqrt(1+x^2)) is None