Cho intlimits12 fleft( x right)rmdx = 2, khi đó I = intlimits14 dfracfleft(

Cho $\int\limits_1^2 {f\left( x \right){\rm{d}}x} = 2$, khi đó $I = \int\limits_1^4 {\dfrac{{f\left( {\sqrt x } \right)}}{{\sqrt x }}{\rm{d}}x} $ bằng