What is the integral from pi to 2pi of sin^2(x) ?

The integral from pi to 2pi of sin^2(x) is pi/2

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integral from pi to 2pi of sin^2(x)

\int_{π}^{2 π} sin^{2} (x) d x

\frac{π}{2}

Decimal Notation

1.57079 \dots

Solution steps

\int_{π}^{2 π} sin^{2} (x) d x

Rewrite using trig identities

= \int_{π}^{2 π} \frac{1 - cos ( 2 x )}{2} d x

Take the constant out:

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

= \frac{1}{2} \cdot \int_{π}^{2 π} 1 - cos (2 x) 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

= \frac{1}{2} (\int_{π}^{2 π} 1 d x - \int_{π}^{2 π} cos (2 x) d x)

\int_{π}^{2 π} 1 d x = π

\int_{π}^{2 π} cos (2 x) d x = 0

= \frac{1}{2} (π - 0)

Simplify

\frac{1}{2} (π - 0) : \frac{π}{2}

= \frac{π}{2}

\frac{d}{d x} (\frac{sin ( 2 x )}{e ^{x}})

\frac{\partial}{\partial y} (2 x^{\frac{1}{2}} y^{\frac{1}{4}} + 7)

\int \frac{7 x ^{2} + x + 7}{( x ^{2} + 1 ) ^{2}} d x

\frac{\partial}{\partial y} (x^{2} ln (x y))

f (x) = 4 x - 3 x, (4, 10)

What is the integral from pi to 2pi of sin^2(x) ?
The integral from pi to 2pi of sin^2(x) is pi/2