Question

varog ajutatima dau corona​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

$(1\frac{1}{5})^2 - (\frac{7}{10})^2 +(1\frac{1}{5} -\frac{7}{10})^2=$

$=(\frac{6}{5})^2 - (\frac{7}{10})^2 +(\frac{6}{5} -\frac{7}{10})^2=$

$=\frac{36}{25} - \frac{49}{100} +(\frac{12}{10} -\frac{7}{10})^2=$

$=\frac{144}{100} - \frac{49}{100} +(\frac{12-7}{10})^2=$

$=\frac{144-49}{100}+(\frac{5}{10})^2=$

$=\frac{95}{100}+(\frac{1}{2})^2=$

$=\frac{19}{20}+\frac{1}{4}=$

$=\frac{19}{20}+\frac{5}{20}=$

$=\frac{19+5}{20} =$

$=\frac{24}{20} =$

$=1,2$

b)

$[(-\frac{1}{2})^3]^6 :(0,5)^{12} - \frac{1}{32} =$

$=(-\frac{1}{2})^{18} :(\frac{1}{2})^{12} - \frac{1}{32} =$

$=(-1)^{18}*(\frac{1}{2})^{18} :\frac{1}{2^{12}} - \frac{1}{32} =$

$=\frac{1}{2^{18}}*{2^{12} - \frac{1}{32} =$

$=\frac{1}{2^{6}} - \frac{1}{32} =$

$=\frac{1}{64} - \frac{1}{32} =$

$=\frac{1}{64} - \frac{2}{64} =$

$=\frac{1-2}{64}=$

$=-\frac{1}{64}$