Exponential and Logarithmic Equations and Inequalities
AP Precalculus · Flashcards
AP PRECALCULUS · FLASHCARDS
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QUESTION
Identify the change of base formula for logarithms.
QUESTION
Solve the equation:
ln
(
x
)
=
2
\text{ln}(x) = 2
ln
(
x
)
=
2
.
QUESTION
Find the solution:
2
x
=
16
2^x = 16
2
x
=
16
.
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ANSWER
x
=
4
x = 4
x
=
4
. Since
16
=
2
4
16 = 2^4
16
=
2
4
, we have
x
=
4
x = 4
x
=
4
.
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