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Last edited by tony123 (2007-08-05 13:21:31)
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First you show that sin80° = sin40° + sin20°. I have set this as a separate exercise for you to do:
http://www.mathsisfun.com/forum/viewtop … 580#p76580
∴
Last edited by JaneFairfax (2007-08-07 11:53:15)
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Reason #131 why I hate trig.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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Nice job there Jane.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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You've been so patient Janefairfax.
X'(y-Xβ)=0
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Wow. That is amazing!
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