2006 AMC 10B Problems/Problem 7
Contents
[hide]Problem
Which of the following is equivalent to when ?
Solution 1
Since
Solution 2
To confirm the answer, inputting a negative value into can help. For ease of computation, if , . As no other option choice fits, is the correct solution. Note that if was chosen, C would have fit as well. Make sure to avoid making this mistake.
See Also
2006 AMC 10B (Problems • Answer Key • Resources) | ||
Preceded by Problem 6 |
Followed by Problem 8 | |
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All AMC 10 Problems and Solutions |
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