Question

làm nhanh

Answer 1

\(a,=\sqrt{\dfrac{25}{16}}\cdot\sqrt{\dfrac{49}{9}}\cdot\sqrt{\dfrac{1}{100}}=\dfrac{5}{4}\cdot\dfrac{7}{3}\cdot\dfrac{1}{10}=\dfrac{7}{24}\\ b,=\sqrt{\dfrac{\left(165-124\right)\left(165+124\right)}{164}}=\sqrt{\dfrac{41\cdot289}{164}}=\sqrt{\dfrac{1}{4}\cdot289}=\dfrac{1}{2}\cdot17=\dfrac{17}{2}\)

Answer 2

a)=\(\sqrt{\dfrac{25}{16}}.\sqrt{\dfrac{49}{9}}.\sqrt[]{\dfrac{1}{100}}\)

=\(\dfrac{5}{4}.\dfrac{7}{3}.\dfrac{1}{10}=\dfrac{7}{24}\)