What is the integral from 1 to 2 of 2/x-x/2 ?

The integral from 1 to 2 of 2/x-x/2 is 2ln(2)-3/4

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integral from 1 to 2 of 2/x-x/2

\int_{1}^{2} \frac{2}{x} - \frac{x}{2} d x

2 ln (2) - \frac{3}{4}

Decimal

0.63629 \dots

Solution steps

\int_{1}^{2} \frac{2}{x} - \frac{x}{2} d x

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int_{1}^{2} \frac{2}{x} d x - \int_{1}^{2} \frac{x}{2} d x

\int_{1}^{2} \frac{2}{x} d x = 2 ln (2)

\int_{1}^{2} \frac{x}{2} d x = \frac{3}{4}

= 2 ln (2) - \frac{3}{4}

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What is the integral from 1 to 2 of 2/x-x/2 ?
The integral from 1 to 2 of 2/x-x/2 is 2ln(2)-3/4