AP Calculus BC Quiz
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LIMITS AND CONTINUITY
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In an optics model, evaluate
lim
x
→
1
3
x
+
1
−
2
x
−
1
\lim_{x\to 1}\frac{\sqrt{3x+1}-2}{x-1}
lim
x
→
1
x
−
1
3
x
+
1
−
2
by rationalizing the numerator.
A
3
2
\frac{3}{2}
2
3
B
3
4
\frac{3}{4}
4
3
C
4
3
\frac{4}{3}
3
4
D
1
4
\frac{1}{4}
4
1
E
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