化简-19/2 (1/(100^2))+19/2

解答

化简

- \frac{19}{2} (\frac{1}{10 0 ^{2}}) + \frac{19}{2}

\frac{189981}{20000}

十进制

9.49905

求解步骤

- \frac{19}{2} (\frac{1}{10 0 ^{2}}) + \frac{19}{2}

使用法则:

(a) = a

(\frac{1}{10 0 ^{2}}) = \frac{1}{10 0 ^{2}}

= - \frac{19}{2} \cdot \frac{1}{10 0 ^{2}} + \frac{19}{2}

- \frac{19}{2} \cdot \frac{1}{10 0 ^{2}} = - \frac{19}{20000}

= - \frac{19}{20000} + \frac{19}{2}

- \frac{19}{20000} + \frac{19}{2} = \frac{189981}{20000}

= \frac{189981}{20000}

s im pl i f y \frac{2}{5} \cdot \frac{6}{7}

6 x - 7 = 12

5 x - 2 + 3 x = 2 x + 6 - 4 x

l o n g m u lt 4.5 \cdot 4.5

s im pl i f y (3 + 6 i) + (4 - i) (3 + 5 i) + \frac{1}{2 - i}