Question

giúp e vs ạ

Answer 1

a: \(A=\dfrac{1+\sqrt{x}}{\sqrt{x}\left(\sqrt{x}-1\right)}\cdot\dfrac{\left(\sqrt{x}-1\right)^2}{\sqrt{x}+1}\)

\(=\dfrac{\sqrt{x}-1}{\sqrt{x}}\)

b: A=1/3

=>\(\dfrac{\sqrt{x}-1}{\sqrt{x}}=\dfrac{1}{3}\)

=>3*căn x-3=căn x

=>2*căn x=3

=>căn x=3/2

=>x=9/4