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#1 Re: Help Me ! » Question Regarding Algebra and Simplifying » 2012-06-16 01:39:01
Also, the method in this lesson is for finding intercepts. So, yes, to find the intercepts you always start by letting x=0.
(In particular letting x=0 lets you find the y-intercept.)
#2 Re: Help Me ! » Question Regarding Algebra and Simplifying » 2012-06-16 01:37:23
2x+3y=6
x=0: 2(0)+3y=6
0+3y=6
3y=6
Not sure if I'm answering your question...?
#3 Re: Help Me ! » Calculus - Intergration by Substitution » 2012-06-16 01:32:41
The substitution u=lnx will do the trick! Then du=(1/x)dx and your integral reduces to u^2 du.
I wish there was some way to use actual math symbols. I see everyone else using them but I don't see the option here.
#4 Help Me ! » Counting Permutations (Abstract Algebra) » 2012-06-16 01:28:16
- eterry
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How many conjugates of (123)(456) are there in S6? This is probably pretty basic, but this counting stuff always messes with me!
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