PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 3
http://latex.codecogs.com/gif.latex?\\|f(x)|\leq&space;a\rightarrow&space;-a\leq&space;f(x)\leq&space;a&space;\\&space;\\|f(x)|\geq&space;a\rightarrow&space;f(x)\leq&space;-a~\Lambda&space;~f(x)\geq&space;a ini tambah bingung lagi ane :h...