I was just wondering, if you have something as 2xln4 could you change this to xln16 or ln4 [^(2x)]. I know it's basic stuff but i just wanted to check.
Thanks,
Heather
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logarithms
Started by HeatherL, May 20 2009 11:29 AM
1 reply to this topic
#1
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Posted 20 May 2009 - 11:29 AM
Hi!!
I was just wondering, if you have something as 2xln4 could you change this to xln16 or ln4 [^(2x)]. I know it's basic stuff but i just wanted to check.
Thanks,
Heather
I was just wondering, if you have something as 2xln4 could you change this to xln16 or ln4 [^(2x)]. I know it's basic stuff but i just wanted to check.
Thanks,
Heather
#2
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Posted 20 May 2009 - 11:45 AM
eh yea you can if I'm reading what you mean correctly:
2x*ln(4) = ln(4^(2x)) NOT [ln(4)]^2x
its just your basic log rules..... a*ln(x) = ln(x^a)
let a = 2x and yea.......
just be careful
if its a calculator exam you could always try it out on your calc by assigning x an arbitrary number and seeing if its equal
2x*ln(4) = ln(4^(2x)) NOT [ln(4)]^2x
its just your basic log rules..... a*ln(x) = ln(x^a)
let a = 2x and yea.......
just be careful
if its a calculator exam you could always try it out on your calc by assigning x an arbitrary number and seeing if its equal
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