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Mathematics
Mathematics
Problem
Evaluate
lim
x
→
0
sin
(
7
x
)
−
sin
(
3
x
)
x
.
\lim_{x\to 0} \dfrac{\sin(7x)-\sin(3x)}{x}.
x
→
0
lim
x
sin
(
7
x
)
−
sin
(
3
x
)
.
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