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Example Questions
Example Question #21 : Natural Log
Solve:
Possible Answers:
Correct answer:
Explanation:
In order to eliminate the natural log, which has a base of
, we will need to raise both side as powers of .
The equation can be simplified to:
Add
on both sides.
Divide by two on both sides.
The answer is:
Example Question #261 : Mathematical Relationships And Basic Graphs
Try without a calculator:
Which expression is not equivalent to 1?
Possible Answers:
Correct answer:
Explanation:
is the correct choice.
For all
for which the expressions are defined,.
Setting
, this equation becomes- that is, the one thousandth root of 1,000. This is not equal to 1, since if it were, it would hold that - which is not true.
Of the other four expressions:
, the common, or base ten, logarithm of 10, can be rewritten as , and , the natural, or base , logarithm of , can be rewritten as . A property of logarithms states that for all , . Therefore, and .
, since any nonzero number raised to the power of 0 is equal to 1.
By the Power of a Power Property,
, so
Varun
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University of Massachusetts Amherst, Bachelor of Science, Biochemistry and Molecular Biology.
Hung Lam
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Luther College, Bachelor of Science, Computer Science. Carnegie Mellon University, Master of Science, Business Statistics.
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