展开 (pi(e-1))/4

解答

展开

\frac{π ( e - 1 )}{4}

\frac{π e}{4} - \frac{π}{4}

十进制

1.34953 \dots

求解步骤

\frac{π ( e - 1 )}{4}

乘开

π (e - 1) : π e - π

= \frac{π e - π}{4}

使用分式法则:

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

\frac{π e - π}{4} = \frac{π e}{4} - \frac{π}{4}

= \frac{π e}{4} - \frac{π}{4}

e x p an d sin (x) (1 + csc (x))

e x p an d \frac{( x ^{3} - 2 )}{( 4 x + 3 ) ( 6 x - 2 )}

e x p an d (6 + sinh (x))^{2}

e x p an d 133.3 \cdot (e^{- 0.4 t} - e^{- 0.5 t})

s im pl i f y - 4 (\frac{x}{6} + 3)