Asked by Mary
Express as a sum of logarithms. ln 4x
A ln 4x + ln x
B ln 4 - ln x
C ln 4 + ln x
D ln(4 + x)
A ln 4x + ln x
B ln 4 - ln x
C ln 4 + ln x
D ln(4 + x)
Answers
Answered by
MathMate
One of the rules of logarithm is
log(a)+log(b) = log(ab)........................(1)
This means that the logarithm of a product is the sum of the logarithms of the multiplicant and multiplier.
Since 4x is a product of 4 * x
Which do you think is the right answer from the list?
(hint: put a=4, and b=x, and substitute into (1) above.
log(a)+log(b) = log(ab)........................(1)
This means that the logarithm of a product is the sum of the logarithms of the multiplicant and multiplier.
Since 4x is a product of 4 * x
Which do you think is the right answer from the list?
(hint: put a=4, and b=x, and substitute into (1) above.
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