Evaluate ( _ x 0 1+ x -1 x

MATHEMATICS · Single correct · AP · Calculus AB · Limits and Continuity · Limits and Continuity

Problem

Evaluate

\displaystyle \lim_{x\to 0} \frac{\sqrt{1+\tan x}-1}{x}.

(a)

1

(b)

\dfrac12

(c)

0

(d)

-\dfrac12

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