Bug introduced in 9.0 and fixed in 10.0
When I evaluate the limit of (1-Cos[x]) Sin[1/x]
at x = 0
in Mathematica 9, I obtained Interval[{-2, 2}]
. The problem is that this limit is 0. It is also 0 when I compute it by Maple and Mathematica 7. So, I wonder whether I've found a bug in Mathematica 9?
Limit[(1 - Cos[x]) Sin[1/x], x -> 0]
Interval[{2, 2}]
(1+Cos[x]) Sin[1/x]
? $\endgroup$