Evaluate the Limit limit as x approaches 0 of (sin(x))/x
Problem
Solution
Identify the form of the limit by substituting
x=0 into the expression.Observe that
sin(0)=0 and the denominator is0 resulting in the indeterminate form0/0 Apply L'Hôpital's Rule, which states that for indeterminate forms of
0/0 the limit is equal to the limit of the derivatives of the numerator and denominator.Differentiate the numerator
sin(x) to getcos(x) and the denominatorx to get1 Evaluate the new limit as
x approaches0 Substitute
x=0 intocos(x) noting thatcos(0)=1
Final Answer
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