2 answers

Write the expression as the logarithm of a single quantity

Question:

write the expression as the logarithm of a single quantity.
2 In 8 + 5 In z
My answer is 7 In 8z but I dont not think this is right!

Answers

Use the properties of logarithms to simplify the logarithmic expression.

log10 (9/300)

Please explain!!.

Nope, not right.
try these rules...
a ln b= ln( b^a)
and ln c + ln d= ln (cd)..

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