SubArea: Rational functionsLevel: BProject ID: 2000006705Source Problem: 9000002905Accepted: 0Clonable: 0Easy: 1Calculate the range of the function f(x)=−22x−1+3.(−∞;3)∪(3;∞)(−∞;12)∪(12;∞)(−∞;−3)∪(−3;∞)(−∞;1)∪(1;∞)