If a function is continuous at
x
=
a
\displaystyle {x}={a}
x
=
a
then which method will
always
work for evaluating
lim
x
→
a
f
(
x
)
\displaystyle \lim_{{{x}\to{a}}}{f{{\left({x}\right)}}}
x
→
a
lim
f
(
x
)
?
Multiply and divide by the conjugate.
Direct substitution.
Factor and cancel.
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