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Problem
Problem
lim
x
→
0
(
1
−
cos
2
x
)
(
3
+
cos
x
)
x
tan
4
x
\lim_{x \to 0} \frac{(1 - \cos 2x)(3 + \cos x)}{x \tan 4x}
lim
x
→
0
x
t
a
n
4
x
(
1
−
c
o
s
2
x
)
(
3
+
c
o
s
x
)
is equal to a. 4 b. 3 c. 2 d.
1
2
\frac{1}{2}
2
1
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