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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
0
(
1
−
cos
2
x
)
sin
3
x
x
3
\displaystyle \lim_{x\to 0}\frac{(1-\cos 2x)\sin 3x}{x^{3}}
x
→
0
lim
x
3
(
1
−
cos
2
x
)
sin
3
x
. a)
12
12
12
b)
3
3
3
c)
6
6
6
d)
4
4
4
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