Post a New Question

Pre Calculus 12

posted by on .

Laws of Logarithms

Evaluate: without using a calculator, except for the first one. The 5.6 is supposed to be subscript, but i don't know how to make it small.

4log(5.6)84

log84/log5.6

Do I multiply this by four or something? both of the logs?

  • Pre Calculus 12 - ,

    One major rule of logs, used when changing bases is

    log ba
    = log a / log b

    so 4 log 5.684
    = 4(log 84 / log 5.6)
    = 4(1.924279.../.74818..) = 10.2877

  • Pre Calculus 12 - ,

    Thanks very much Reiny :)

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question