What is the integral from-48 to 0 of 1/(sqrt(1-x)) ?

The integral from-48 to 0 of 1/(sqrt(1-x)) is 12

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integral from-48 to 0 of 1/(sqrt(1-x))

\int_{- 48}^{0} \frac{1}{1 - x} d x

12

Solution steps

\int_{- 48}^{0} \frac{1}{1 - x} d x

Apply u-substitution

: \int_{49}^{1} - \frac{1}{u} d u

= \int_{49}^{1} - \frac{1}{u} d u

\int_{a}^{b} f (x) d x = - \int_{b}^{a} f (x) d x, a < b

= - \int_{1}^{49} - \frac{1}{u} d u

Take the constant out:

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

= - (- \int_{1}^{49} \frac{1}{u} d u)

Apply the Power Rule

: [2 u^{\frac{1}{2}}]_{1}^{49}

= - (- [2 u^{\frac{1}{2}}]_{1}^{49})

Simplify

- (- [2 u^{\frac{1}{2}}]_{1}^{49}) : [2 u]_{1}^{49}

= [2 u]_{1}^{49}

Compute the boundaries:

12

= 12

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What is the integral from-48 to 0 of 1/(sqrt(1-x)) ?
The integral from-48 to 0 of 1/(sqrt(1-x)) is 12