What is the range of the function f ( x , y, z ) = 2x2 + 842 + 2 2 + 3? Enter either . an interval/union of intervals or . by entering some inequalities in variable r, linked with logic symbols (A for 'and', V for 'or'). For instance the interval [3, 5) can be entered as r 2 3 A r Check (3) standard function logic vector abc unit Search L ENG US