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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
0
1
−
cos
3
x
x
2
\displaystyle\lim_{x\to 0}\frac{1-\cos 3x}{x^{2}}
x
→
0
lim
x
2
1
−
cos
3
x
. a)
3
2
\dfrac{3}{2}
2
3
b)
1
2
\dfrac{1}{2}
2
1
c)
9
2
\dfrac{9}{2}
2
9
d)
9
9
9
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