SubArea: Limits and continuityLevel: BProject ID: 1003085506Accepted: 1Clonable: 0Easy: 1Decide which of the following functions have points of discontinuity. f1(x)=12xf2(x)=x⋅3xf3(x)=1ex−1f4(x)=e2x−1 The only such functions are:f3f1, f3f1, f4f1, f3, f4