Question

[Nguyen Marty]

TínhpCac ban giup mình giai cac cau minh vua gui nha ☺☺☺

Answer 1

[Thảo Phương]

1)\(\sqrt{\left(\dfrac{2}{3}\right)^{^2}}-\sqrt{0,09}+\sqrt{\dfrac{9}{25}}=\dfrac{2}{3}-0,3+\dfrac{3}{5}=\dfrac{2}{3}-\dfrac{3}{10}+\dfrac{3}{5}=\dfrac{29}{30}\)

2)

\(3\sqrt{16}-2\sqrt{25}+8\sqrt{64}-3\sqrt{81}=12-10+64-27=39\)

3)\(-\sqrt{\left(-\dfrac{2}{3}\right)^2}+3\sqrt{0}-4\sqrt{0,25}+0\sqrt{4,9}=-\dfrac{2}{3}+0-2+0=-\dfrac{4}{3}\)4)

\(\sqrt{4}.\sqrt{\dfrac{1}{16}}-\sqrt{25}.\sqrt{\dfrac{1}{100}}+\dfrac{\sqrt{36}}{\sqrt{16}}=2.\dfrac{1}{4}-5.\dfrac{1}{10}+\dfrac{6}{4}=\dfrac{1}{2}-\dfrac{1}{2}+\dfrac{3}{2}=\dfrac{3}{2}\)

5)\(\sqrt{\dfrac{4}{25}}+\sqrt{\dfrac{25}{4}}+\sqrt{\dfrac{81}{100}}+\sqrt{\dfrac{9}{16}}=\dfrac{2}{5}+\dfrac{5}{2}+\dfrac{9}{10}+\dfrac{3}{4}=\dfrac{91}{20}\)

Chúc bạn học tốt.