Răspuns:
[tex]a = (\frac{3}{8} + \frac{10}{8} - \frac{11}{10} )\div \sqrt{ \frac{12}{10} \times \frac{90}{75} } [/tex]
[tex]a = (\frac{13}{8 } - \frac{11}{10} ) \div \sqrt{ \frac{12 \times 90}{10 \times 75} } [/tex]
[tex]a = ( \frac{65 - 44}{40} ) \div \sqrt{ \frac{1080}{750} } [/tex]
[tex]a = \frac{21}{40} \div \sqrt{1.44} [/tex]
[tex]a = \frac{21}{40} \div \sqrt{ \frac{144}{100} } [/tex]
[tex]a = \frac{21}{40} \div \frac{12}{10} [/tex]
[tex]a = \frac{21}{40} \times \frac{10}{12} [/tex]
[tex]a = \frac{21 \times 10}{40 \times 12} [/tex]
[tex]a = \frac{7}{4 \times 4} [/tex]
[tex]a = \frac{7}{16} [/tex]
[tex]a = 0.4375[/tex]
ROTUNJIRE:
[tex]0.4[/tex]
