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#1

$Old$ November 3rd, 2009, 08:55 PM

realistic $realistic is offline$

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i can do the first one but the second one i cant seem to work it out

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#2

$Old$ November 3rd, 2009, 11:25 PM

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i can do the first one but the second one i cant seem to work it out

What base are you working to? That is an important omission on your part. Note that, for a > 0, $1 = \log_{a} a$ ....

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$Old$ November 3rd, 2009, 11:26 PM

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What base are you working to? That is an important omission on your part. Note that, for a > 0, $1 = \log_{a} a$ ....

thats how the question in the book is

log3−log10+1

wouldnt the answer just be log3?

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$Old$ November 3rd, 2009, 11:28 PM

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thats how the question in the book is

Well, if the base is 10 then you know that $\log 10 = 1$ and so the answer to the second question is plainly $\log 3$ since the 1's will cancel.

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#5

$Old$ November 3rd, 2009, 11:30 PM

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Well, if the base is 10 then you know that $\log 10 = 1$ and so the answer to the second question is plainly $\log 3$ since the 1's will cancel.

ah yeah i see that but was not sure thanks for explaining it out

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