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Mathematics
Problem
Explain why
lim
x
→
−
3
7
(
x
+
3
)
2
=
+
∞
\displaystyle\lim_{x\to -3}\frac{7}{(x+3)^2}=+\infty
x
→
−
3
lim
(
x
+
3
)
2
7
=
+
∞
. In your answer, state the value of the limit and justify its sign in one sentence.
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