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Post by owen on Jul 3, 2009 10:42:30 GMT
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Camp Freddy
played a blider!
"I do think you might make an effort to keep up with the others"
Posts: 9,592
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Post by Camp Freddy on Jul 3, 2009 10:44:30 GMT
I have no idea if this will work or not...
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Post by hawkingshalfpipe on Jul 3, 2009 10:47:07 GMT
y=cos3(3x)
u=cos(3x)
thus y=u3
dy/du = 3u2
and du/dx = -3sin3x
so...
dy/dx = dy/du*du/dx = 3u2*(-3sin3x)
=-9u2*sin3x
replace the u
= -9*cos2(3x)*sin3x
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Post by owen on Jul 3, 2009 10:48:07 GMT
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Camp Freddy
played a blider!
"I do think you might make an effort to keep up with the others"
Posts: 9,592
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Post by Camp Freddy on Jul 3, 2009 10:49:37 GMT
Sort it Collins
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Jammin
WBAunofficial lifetime achievement
Posts: 5,783
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Post by Jammin on Jul 3, 2009 11:21:32 GMT
Oooh does that work?
Glad there are no Junior Baggies on this bit of the internet. NWS
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Post by Sid Collins on Jul 3, 2009 11:40:22 GMT
Hmmm, thinking of killing all this
formatting stuff...
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Post by owen on Jul 3, 2009 12:00:41 GMT
Really?
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Post by mayo on Jul 3, 2009 12:02:13 GMT
I like it
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Post by Sid Collins on Jul 3, 2009 12:05:18 GMT
Really not good for my work reading of this site. Already killed avatars and sign offs on my view so it looks innocuous.
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Post by owen on Jul 3, 2009 12:08:21 GMT
Take a look at the Daily Dodgy and tell me that isn't worth it!
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