SubArea: Quadratic Equations and InequalitiesLevel: BProject ID: 2000000201Accepted: 0Clonable: 0Easy: 1Solve the following inequality. \[ x^2+1>0 \]\(x \in \mathbb{R}\)\(x \in \emptyset \)\(x \in (-1,1)\)\(x \in (-\infty ,-1)\cup (1,\infty )\)
