SubArea: Exponential FunctionsLevel: AProject ID: 2010013006Source Problem: 2010013007Accepted: 0Clonable: 1Easy: 0Find the range of a function \(f(x)=2^{1-x}-3\).\(\left(-3,\infty\right)\)\(\left(1,\infty\right)\)\(\left(-\infty,-3\right)\)\(\left(3,\infty\right)\)
