JEE Previous Year Questionlimx→−2+([x]2−[x]−2)+limx→−3−([x]2−4[x]+3)=Topic: JEE PYQAnswer: A. Full step-by-step solution below.A39B33C28D44Correct answer: ASolution(a) limx→−2+([x]2−[x]−2)+limx→−3−([x]2−4[x]+3)∵limx→−2+[x]=limh→0[−2+h]=−2limx→−3−[x]=limh→0[−3−h]=−4⇒(−2)2−(−2)−2+(−4)2−4(−4)+3=4+2−2+16+16+3=39.More Sets, Relations & Functions PYQsLet A=1,2,3. The number of relations on A, containing (1,2) and…Let a,b,c be real numbers. A set formed with a. b,c whose order of occurrence is pre-assigned is cal…limx→22x3−3x2−3x+2x3−x2−x−2=limy→1(y2−11−y4−12)=The number of elements in the set {n ∈ Z :|n2 - 10n + 19|< 6} is_______.