2021 AMC 12A Problems/Problem 19
Problem
How many solutions does the equation have in the closed interval
?
Solution
The interval is , which is included in the range of both
and
, so we can use them with no issues.
This only happens at on the interval
, because one of
and
must be
and the other
. Therefore, the answer is
~Tucker
See also
2021 AMC 12A (Problems • Answer Key • Resources) | |
Preceded by Problem 18 |
Followed by Problem 20 |
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All AMC 12 Problems and Solutions |
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