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1
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Identify the error in the student solution shown below. Find the correct answer.
Answer:
The student incorrectly rewrote ln(3x) - 0 as ln(3x/0), which is undefined. The correct solution is x = 3; x = 0 is extraneous.
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Which did you include in your solution?
A
Since 0 in ln(3x) - 0 is not a logarithm, the property of logarithms cannot be used here.B
The difference shown cannot be written as a quotient of logarithms.C
The step ln(x2) = ln(3x) - (0) reduces to ln(x2) = ln(3x).D
The possible solutions are 0 and 3, with 0 being extraneous.Did you find these answers helpful?
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