Maths lul

by Quazz • 30 Sep 2010, 21:42 • Journals
f(x)=sqrt(sin3x)

Wut b teh domain?

Go go go

First one gets a cookie :3
Comments
11
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jnz 30 Sep 2010, 22:48
the answer is 5
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loctarar 30 Sep 2010, 22:51
3x is in [2k * pi; (2k + 1) * pi] so x is in [2k/3 * pi; (2k+1)/3 * pi]
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Quazz 30 Sep 2010, 22:53
You forgot to mention that k is part of the collection of Z, but I'll let that one slide


image: chocolate_chip_cookie

For you sir.
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loctarar 30 Sep 2010, 22:56
k is usually in Z and x in R. I assumed it's a standard notation :P. Do you have a glass of milk to go with the cookie? That would be awesome.
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Quazz 30 Sep 2010, 23:01
Yes, but it should always be noted nonetheless, in some cases K is allowed to be R. :)
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sadFace 30 Sep 2010, 22:57
Ca sent la douille!
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flR 30 Sep 2010, 23:30
= 2 easy, do whats ur problem, totally easy
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vaGgi 1 Oct 2010, 04:03
sqrt = squirt
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