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Old 04-29-2013, 08:32 AM
Ziad Hatahet Ziad Hatahet is offline
Join Date: Apr 2013
Location: San Francisco, CA
Posts: 23
Default Re: *ANSWER* Stuck on #4

Originally Posted by IsidroHidalgo View Post
I think you have a typo, is'n it? For me a=(x_1y_1+x_2y_2)/(x_1^2+x_2^2)
Yes, that's what I got too. So you're saying that with using this formula, you're getting 0.79, and not 1.42 as mentioned in a couple of other threads?
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