PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 3
http://latex.codecogs.com/gif.latex?\\f(x)=x(\frac{b}{x^{2}})+\frac{x}{b}(1-\frac{a^{2}}{x^{2}})&space;\\&space;\\f(x)=\frac{b}{x}+\frac{x}{b}-\frac{a^{2}}{bx}&space;\\&space;\\f(a+b)=\frac{b^2+x^{2}-a^2}{bx}&...