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Mathematics
Mathematics
Problem
For a positive constant
a
a
a
, evaluate
lim
x
→
a
x
−
a
x
−
a
\displaystyle \lim_{x\to a}\frac{\sqrt{x}-\sqrt{a}}{x-a}
x
→
a
lim
x
−
a
x
−
a
in terms of
a
a
a
.
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