2018 AMC 12B Problems/Problem 7
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Problem
What is the value of
Solution 1
Change of base makes this (mathguy623)
Solution 2
Using the chain rule for logarithms (), we get
.
Solution 3
When the entire product is rewritten using change of base, the fractions telescope down to
See Also
2018 AMC 12B (Problems • Answer Key • Resources) | |
Preceded by Problem 6 |
Followed by Problem 8 |
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All AMC 12 Problems and Solutions |
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