What is the integral from 0 to 2 of 1/(sqrt(1+4x)) ?

The integral from 0 to 2 of 1/(sqrt(1+4x)) is 1

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integral from 0 to 2 of 1/(sqrt(1+4x))

\int_{0}^{2} \frac{1}{1 + 4 x} d x

1

Solution steps

\int_{0}^{2} \frac{1}{1 + 4 x} d x

Apply u-substitution

= \int_{1}^{9} \frac{1}{4 u} d u

Take the constant out:

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

= \frac{1}{4} \cdot \int_{1}^{9} \frac{1}{u} d u

Apply the Power Rule

= \frac{1}{4} [2 u^{\frac{1}{2}}]_{1}^{9}

Apply radical rule:

= \frac{1}{4} [2 u]_{1}^{9}

Compute the boundaries:

4

= \frac{1}{4} \cdot 4

Simplify

= 1

What is the integral from 0 to 2 of 1/(sqrt(1+4x)) ?
The integral from 0 to 2 of 1/(sqrt(1+4x)) is 1