write in power notation i get the first one but stuck on second 1.) log 5 625 =4 = 5^4 =625 2.) log100000 =5 =?
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Originally Posted by realistic write in power notation i get the first one but stuck on second 1.) log 5 625 =4 = 5^4 =625 2.) log100000 =5 =? Look at all those zeros. And since the base is not given, I wonder what that means? Hint hint.
Originally Posted by realistic write in power notation i get the first one but stuck on second 1.) log 5 625 =4 = 5^4 =625 2.) log100000 =5 =? What's the base of the logarithm in Q2?
since log x, unless otherwise specified, has a base of 10, then for log 100000=5, power notation is 10^5 = 100000
Last edited by jmedsy; November 2nd 2009 at 08:04 PM. Reason: typo
Originally Posted by jmedsy since log x, unless otherwise specified, has a base of 10, then for log 100000=4, power notation is 10^5 = 100000 log100000 =4? ok i c so if the base is not specified you assume it has a base of 10? 10^5 makes sense thanks
sorry i meant to type log 100000 = 5 there. yep
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