SubArea: Higher Degree Equations and InequalitiesLevel: BProject ID: 1003029004Source Problem: 2010009603Accepted: 1Clonable: 1Find the solution set of the inequality. \[ x^4-1\geq0 \]\( (-\infty,-1]\cup[1,\infty) \)\( [-1,1] \)\( \mathbb{R} \)\( [ 1,\infty ) \)
