Find the domain of the function f(x) = cos-1[2x2 -3] Share with your friends Share 0 Rishabh Mittal answered this fx=cos-12x2-3We know domain of cos-1x is -1,1So,-1≤2x2-3≤1-1+3≤2x2-3+3≤1+32≤2x2≤41≤x2≤2So,x≤-1 , x≥1 and x≥-2 , x≤2So, domain is -2,-1∪1,2 . -27 View Full Answer
