Question

Ma puteți ajuta va rog
Dau coroana.

a) |7 supra 2|+|3 supra 2| =
b) |-1 supra 3|+|8 supra 3|=
c) |11 supra 4|-|3 supra 4|=
d) |-4 supra 5|-|9 supra 5|=

Answer 1

Explicație pas cu pas:

$a) | \frac{7}{2} | + | \frac{3}{2} | = \frac{7}{2} + \frac{3}{2} = \frac{7 + 3}{2} = \frac{10}{2} = 5$

$b) | - \frac{1}{3} | + | \frac{8}{3} | = - ( - \frac{1}{3} ) + \frac{8}{3} = \frac{1 + 8}{3} = \frac{9}{3} = 3$

$c) | \frac{11}{4} | - | \frac{3}{4} | = \frac{11}{4} - \frac{3}{4} = \frac{11 - 3}{4} = \frac{8}{4} = 2$

$d) | - \frac{4}{5} | - | \frac{9}{5} | = - ( -\frac{4}{5}) - \frac{9}{5} = \frac{4}{5} - \frac{9}{5} = \frac{4 - 9}{5} = \frac{ - 5}{5} = - \frac{5}{5} = - 1$