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Popular >

extreme f(x)=-4/(x^2+1)

Solution

extreme points

f (x) = - \frac{4}{x ^{2} + 1}

Solution

Minimum (0, - 4)

Solution steps

f^{'} (x) = \frac{8 x}{( x ^{2} + 1 ) ^{2}}

Find intervals:

Decreasing

: - \infty < x < 0,

Increasing

: 0 < x < \infty

Plug

x = 0

into

- \frac{4}{x ^{2} + 1} : - 4

Minimum (0, - 4)

Popular Examples

f (x) = x^{2} - 3

simplify (15.3)(2.2)simplify

(15.3) (2.2)

inverse of f(x)=10-x^2,x>= 0 inverse

f (x) = 10 - x^{2}, x \geq 0

intercepts of f(x)=6y-3x=-18x intercepts

f (x) = 6 y - 3 x = - 18 x

domain of f(x)= 1/(ln(2x-1))domain

f (x) = \frac{1}{ln ( 2 x - 1 )}

Frequently Asked Questions (FAQ)

What is the extreme f(x)=-4/(x^2+1) ?
The extreme f(x)=-4/(x^2+1) is Minimum(0,-4)