What is the integral of sqrt(9/(1-x^2)) ?

The integral of sqrt(9/(1-x^2)) is 3arcsin(x)+C

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integral of sqrt(9/(1-x^2))

\int \frac{9}{1 - x ^{2}} d x

3 arcsin (x) + C

Solution steps

\int \frac{9}{1 - x ^{2}} d x

Simplify

\frac{9}{1 - x ^{2}} : \frac{3}{1 - x ^{2}}

= \int \frac{3}{1 - x ^{2}} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 3 \cdot \int \frac{1}{1 - x ^{2}} d x

Use the common integral:

\int \frac{1}{1 - x ^{2}} d x = arcsin (x)

= 3 arcsin (x)

Add a constant to the solution

= 3 arcsin (x) + C

x \to 15 lim (2)

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What is the integral of sqrt(9/(1-x^2)) ?
The integral of sqrt(9/(1-x^2)) is 3arcsin(x)+C