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Popular >

4/(x^2+9)>= 0

Solution

\frac{4}{x ^{2} + 9} \geq 0

Solution

True for all x

+1

Solution steps

\frac{4}{x ^{2} + 9} \geq 0

Divide both sides by

4

\frac{\frac{4}{x ^{2} + 9}}{4} \geq \frac{0}{4}

Simplify

\frac{1}{x ^{2} + 9} \geq 0

If

\frac{1}{a} \geq 0

then

a > 0

x^{2} + 9 > 0

Move

9

to the right side

x^{2} > - 9

If n is even,

u^{n} \geq 0

for all

u

True for all x

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(\frac{n}{5} - \frac{5}{n})^{2}

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Frequently Asked Questions (FAQ)

What is 4/(x^2+9)>= 0 ?
The solution to 4/(x^2+9)>= 0 is True for all x