Math Help

[koolaidman]

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Hi,

How would I find the answer to logx, Inx, and e^x type questions without using a calculator? Thanks.

 

[Streetwolf]

You'd guess. On the DAT they usually give good numbers.

If you had log(115) then you should ask yourself:

10 to what power equals 115?

You know 10 to the 2nd power is 100 so the answer is probably just over 2.

 

[doc3232]

You'd guess. On the DAT they usually give good numbers.

If you had log(115) then you should ask yourself:

10 to what power equals 115?

You know 10 to the 2nd power is 100 so the answer is probably just over 2.

Ya..they will have pretty fair questions. You can estimate 'e' to be 3.