What is the integral from 0 to pi/2 of 2 ?

The integral from 0 to pi/2 of 2 is pi

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integral from 0 to pi/2 of 2

\int_{0}^{\frac{π}{2}} 2 d x

π

Decimal

3.14159 \dots

Solution steps

\int_{0}^{\frac{π}{2}} 2 d x

Integral of a constant:

\int a d x = a x

= [2 x]_{0}^{\frac{π}{2}}

Compute the boundaries:

π

= π

\int_{0}^{4} 3 x - 7 d x

\int_{0}^{1} \frac{1}{3 y + 1} d y

\int_{0}^{3} (- x^{2} + 4 x) d x

\int_{0}^{5} (8 e^{0.2 x} + 2 x) d x

\int_{0}^{\frac{π}{5}} sin (5 x) d x

What is the integral from 0 to pi/2 of 2 ?
The integral from 0 to pi/2 of 2 is pi