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AnnyKZ [126]
3 years ago
5

How can the logarithmic expression be rewritten? Select True or False for each statement.

Mathematics
1 answer:
olasank [31]3 years ago
5 0

Answer:

1. log_3(cd)^4  = 4 log_3(c )+ log_3(d)  FALSE

2. \frac{2}{3} (ln(a) +ln(b)) =  ln(\sqrt[3]{a^2b^2} )  TRUE

3.ln(\frac{e^3}{f} )  = 3 ln(e) - ln (f)  TRUE

Step-by-step explanation:

Here, let us first state the logarithmic rules.

log (a) - log (b)  =log(\frac{a}{b} )\\log (ab)   = log a + log b\\log(a^m) = m \times log (a)

Now, here the given expressions are:

1. log_3(cd)^4  = 4 log_3(c )+ log_3(d)

The given statement is FALSE as:

log_3(cd)^4   = 4 log_3(cd)  = 4log_3(c) + 4log_3(d)

2. \frac{2}{3} (ln(a) +ln(b)) =  ln(\sqrt[3]{a^2b^2} )

\frac{2}{3} (ln(a) +ln(b))  =  \frac{2}{3} ln(ab)   =  ln(ab) ^\frac{2}{3}  \\= ln(\sqrt[3]{a^2b^2} )\\\implies\frac{2}{3} (ln(a) +ln(b)) =  ln(\sqrt[3]{a^2b^2} )

The given statement is TRUE .

3.ln(\frac{e^3}{f} )  = 3 ln(e) - ln (f)

The given statement is TRUE as:

ln(\frac{e^3}{f} )  =   ln(e^3) - ln (f)   =  3 ln(e) - ln (f)

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