5.已知函数f(x)={x2,x⩾01x,x<0f(x)=\left\{{\left.\begin{array}{l}{{x^2},x\geqslant 0}\\ {\frac{1}{x},x<0}\end{array}\right.}\right.f(x)={x2,x⩾0x1,x<0,则函数f(x)f(x)f(x)的图像是((( )))