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MathsHardMCQ2012 · 07 May Online

Q72. limx→0 ( x−sinx x ) sin ( x1 ) (1) equals 1 (2) equals 0 (3) does not exist (4) equals −1

What This Question Tests

This problem requires careful evaluation of a limit involving an oscillating term. It combines the Taylor series expansion for sin(x) with the behavior of sin(1/x) as x approaches 0, leading to a limit that does not exist.

Concepts Tested

L'Hôpital's RuleStandard limitsOscillating limits

Formulas Used

lim (x->0) sinx/x = 1

Taylor series expansion of sinx

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