If {x} denotes tile part of x, then limx→1 xsin{x}x−1 is
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a
0
b
-1
c
non-existent
d
none of these
answer is C.
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Detailed Solution
We have,limx→1− xsin{x}x−1=limx→1− xsinxx−1→−∞and,limx→1+ xsin{x}x−1=limx→1+ xsin(x−1)x−1=1×1=1Clearly, limx→1− xsin{x}x−1≠limx→1+ xsin{x}x−1So limx→1 xsin{x}x−1 does not exist.