Question

\(\sqrt{\dfrac{4}{25}}+25+\left|-\dfrac{4}{5}\right|-\dfrac{9}{5}\cdot\left(\dfrac{-1}{3}\right)^2+0,75\)

Answer 1

\(=\sqrt{\dfrac{4}{25}+\dfrac{4}{5}-\dfrac{9}{5}\cdot\dfrac{1}{9}+\dfrac{3}{4}}=\sqrt{\dfrac{4}{25}+\dfrac{4}{5}-\dfrac{1}{5}+\dfrac{3}{4}}\)

\(=\sqrt{\dfrac{4}{25}+\dfrac{3}{5}+\dfrac{3}{4}}\)

\(=\sqrt{\dfrac{16+60+75}{100}}=\dfrac{\sqrt{151}}{10}\)

Answer 2

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Answer 3

\(\sqrt{\dfrac{4}{25}+\left|-\dfrac{4}{5}\right|-\dfrac{9}{5}.\left(\dfrac{-1}{3}\right)^2+0,75}\)

\(=\sqrt{\dfrac{4}{25}+\dfrac{4}{5}-\dfrac{9}{5}.\dfrac{1}{9}+\dfrac{3}{4}}=\sqrt{\dfrac{4}{25}+\dfrac{20}{25}-\dfrac{9}{45}+\dfrac{3}{4}}=\sqrt{\dfrac{24}{25}-\dfrac{9}{45}+\dfrac{3}{4}}\)

\(=\sqrt{\dfrac{19}{25}+\dfrac{3}{4}}=\sqrt{\dfrac{76}{100}+\dfrac{75}{100}}=\sqrt{\dfrac{151}{100}}=\dfrac{\sqrt{151}}{10}\)