Question

plz , doar ce stii!
dau coroana!​

Answer 1

1) $| \sqrt{3} - 1 | +  | \sqrt{3} + 1 | +  | \sqrt{3} - 2 | -  | - \sqrt{3} | =  \it \sqrt{3} - 1 + \sqrt{3}  + 1 - (\sqrt{3} - 2) - (\sqrt{3}) = \it \sqrt{3} - 1 + \sqrt{3}  + 1  - \sqrt{3}  + 2  - \sqrt{3} = 2$

2) $(\frac{-3}{2} )^{-1} + 3^{-1} \cdot\frac{1}{4}  = \it -\frac{2}{3} + \frac{1}{3} \cdot \frac{1}{4} = \it -  ~ ^{4} )\frac{2}{3} + \frac{1}{12} = \it - \frac{8}{12} + \frac{1}{12}  = - \frac{7}{12}$

3) $[ -2 + 6 \cdot (-3)]:5 = \it (-2 - 18):5 = \it -20:5 = \it -4$

4) $(0,03)^{-1}:0,(6) - 1 = \it (\frac{3}{100} )^{-1}:\frac{6}{9} - 1 = \it \frac{100}{3} \cdot \frac{9}{6}  - 1 = \it \frac{900}{18} - 1 = \it 50 - 1 = \it 49$