SubArea: Analyzing function behaviorLevel: AProject ID: 9000079102Source Problem: 2010001703Accepted: 1Clonable: 1Easy: 0Find the intervals where the following function is a decreasing function. f(x)=x2+1x[−1;0) and (0;1][−1;1](−∞;−1] and [1;∞)[1;∞)
