Express 4 ln 2 - ln 4 as a single natural logarithm.
Answer
A
ln 2
B
ln 4
C
ln 64
Explanation
Use the logarithm rules: 4 ln 2 = ln(2⁴) = ln 16, and ln 16 − ln 4 = ln(16 ÷ 4) = ln 4. So the expression as a single natural logarithm is ln 4, which is choice B.
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