展开 (sqrt(2)(pi-180))/(360)

解答

展开

\frac{2 ( π - 180 )}{360}

\frac{π}{180 2} - \frac{1}{2}

十进制

- 0.69476 \dots

求解步骤

\frac{2 ( π - 180 )}{360}

乘开

2 (π - 180) : 2 π - 1802

= \frac{2 π - 180 2}{360}

使用分式法则:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{2 π - 180 2}{360} = \frac{2 π}{360} - \frac{180 2}{360}

= \frac{2 π}{360} - \frac{180 2}{360}

\frac{2 π}{360} = \frac{π}{180 2}

\frac{180 2}{360} = \frac{1}{2}

= \frac{π}{180 2} - \frac{1}{2}

e x p an d \frac{12 x}{( x ^{2} + 1 ) ^{2}}

e x p an d (x + 4 y) d x + (4 x - y) d y

e x p an d \frac{x}{( x + 2 ) ( x ^{2} + 4 )}

e x p an d e^{2 t} (t - 2)^{2}

e x p an d (16 = \frac{1}{2} x + \frac{3}{2}) 2