Question

VREAU E1 SI E2 !!!!
PLSSSS
MERSIII FRUMOS
DAU 50 DE PUNCTE ​

Answer 1

Explicație pas cu pas:

1) fals

$- \dfrac{1}{2} = - \dfrac{5}{10} < - \dfrac{1}{10}$

2) adevărat

3) adevărat

$\sqrt{3} \approx 1,73205... \implies 1,73 < \sqrt{3} < 5$

4) fals

$\dfrac{ \sqrt{5} }{3} > \dfrac{ \sqrt{4} }{3} = \dfrac{2}{3} = \dfrac{6}{9} = 0.(6)$

5) fals

$1.(2) < 1.5 = \dfrac{3}{2}$

6) adevărat

$- \sqrt{2} \approx - 1.41421... \\ - 1.42000 < - 1.41421... < - 1.41000 \\ - 1.42 < - \sqrt{2} < - 1.41$

7) adevărat

$- \pi \approx - 3.14159... \\ - 3.142 < - 3.14159... < - 3.141 \\ - 3.142 < - \pi < - 3.141$

8) fals

$3.2(4) = \dfrac{324 - 32}{90} = \dfrac{292}{90} = \dfrac{146}{45}$

$\dfrac{146}{45} > \dfrac{146}{47}$

$\dfrac{146}{47} < \dfrac{146}{45} < \dfrac{141}{41}$