integral of (sin(x))/x)

解答

\int d (\frac{sin ( x )}{x}) d x

d Si (x) + C

求解步骤

\int d \frac{sin ( x )}{x} d x

提出常数:

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

= d \cdot \int \frac{sin ( x )}{x} d x

这是非初等函数积分:

\int \frac{sin ( x )}{x} d x = Si (x)

= d Si (x)

解答补常数

= d Si (x) + C

\int \frac{1}{- 5 w ^{2} + 22 w - 8} d w

in t e g r a l \frac{x}{x ^{2} + 1}

\int \frac{( x ^{3} )}{1 + x ^{8}} d x

\int \frac{1}{x 3 x} d x

\int - 2 z sin (2 z) + cos (2 z) d z