Apentix/AP Calculus AB/Unit 4: Contextual Applications of Differentiation/Question

AP Calculus ABmediummcq1 pt

What is $\displaystyle\lim_{x\to 0}\dfrac{1-\cos x}{x}$ ?

A.

1

B.

-1

C.

0

D.does not exist

Explanation

Core Concept

L'Hôpital's rule gives $\dfrac{\sin x}{1}$ , and $\sin(0)=0$ .

Correct Answer

C $0$

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