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TheGreatestHou
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| Thu Oct 26, 2006 2:40 am HIAT 3 |
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I have a huge question. I forgot everything I learned about trig but:
Pg. 245, Question 3c
How would I express x in terms of b and cosC? |
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animedude555
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| Thu Oct 26, 2006 3:59 am |
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| i have a question about that entire investigation... i dont even get it =.=; |
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Regretful Euphoria
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| Thu Oct 26, 2006 4:40 am |
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Had troubles myself, so I asked my Dad. Here it is.
3c.
cosC = x/b
x = bcosC
Then you substitute that into the equation
c^2 = a^2 + b^2 + 2ax
so...
c^2 = a^2 + b^2 + 2abcosC
Omghax, its the law of cosines! |
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tokidok~ <3
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| Fri Oct 27, 2006 12:14 am |
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wth is con...
i saw it on my calculater..
and i need help with log stuff
anyone care to explain it for me?? |
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noodledoodle
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| Fri Oct 27, 2006 12:30 am |
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| remember what happened last time u asked for help on that? |
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tokidok~ <3
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| Fri Oct 27, 2006 12:56 am |
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uh oh..
i take that back!!!
nvm!!!!! |
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Dievan
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| Fri Oct 27, 2006 1:45 am |
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| =P I always do my math hw on the morning bus |
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noodledoodle
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| Fri Oct 27, 2006 2:29 am |
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i do it at home
or sometimes speech
but thats mostly for chinese hw |
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TheGreatestHou
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| Fri Oct 27, 2006 5:35 am |
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| I eventually figured out the problem. Thanks for you help anyways. |
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