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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
0
1
+
tan
x
−
1
x
.
\displaystyle \lim_{x\to 0} \frac{\sqrt{1+\tan x}-1}{x}.
x
→
0
lim
x
1
+
tan
x
−
1
.
a)
1
1
1
b)
1
2
\dfrac12
2
1
c)
0
0
0
d)
−
1
2
-\dfrac12
−
2
1
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