化简 1/2+1/2+1/2+1/2

解答

化简

\frac{1}{2} + \frac{1}{2} + \frac{1}{2} + \frac{1}{2}

2

求解步骤

\frac{1}{2} + \frac{1}{2} + \frac{1}{2} + \frac{1}{2}

使用分式法则:

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

= \frac{1 + 1 + 1 + 1}{2}

数字相加:

1 + 1 + 1 + 1 = 4

= \frac{4}{2}

数字相除:

\frac{4}{2} = 2

= 2

s im pl i f y - \frac{2}{3} \cdot (- 3)

\frac{1}{25}

s im pl i f y \frac{2}{8}

e x p an d (x + 1) (3 x^{2} + 9 x + 2)

s im pl i f y (\frac{2}{3} + \frac{2}{3} i)^{2}