展开 (50(3sqrt(11)-1))/(49)

解答

展开

\frac{50 ( 3 11 - 1 )}{49}

\frac{150 11}{49} - \frac{50}{49}

十进制

9.13252 \dots

求解步骤

\frac{50 ( 3 11 - 1 )}{49}

乘开

50 (311 - 1) : 15011 - 50

= \frac{150 11 - 50}{49}

使用分式法则:

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

\frac{150 11 - 50}{49} = \frac{150 11}{49} - \frac{50}{49}

= \frac{150 11}{49} - \frac{50}{49}

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