RHL= 1 and LHL= -1
so no limit exists
lim x->2(-1)[x] where [x] is the greatest integer fn. is =
A. 1
B. -1
C. +-1
D. none of these
x->2 (-1)[x]
now see when x reaches 2 from the LHS then [x]=1.
so (-1)[x] = -11 = -1
when x reaches from the RHS, then [x]=2
so (-1)[x] = -12 = 1
thank u bhaiya .. i had understood my mistake after readin b555's solution.. :)