Math help!

Started by Archz, September 14, 2009, 06:21:40 PM

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Archz

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Math help!

September 14, 2009, 06:21:40 PM Last Edit: September 14, 2009, 06:23:58 PM by Archz

Since we have some bright minds in the guild, using the forum for help have actually been of great help!

And I am in need for some help, so here goes:

"
Let a > 0 be a real number

Show that the equation x = cos(ax) has a solution in the interval [0 , pi/2a].
(remember to name the mathematical theorem) <- (?)
"

I have some silly solutions that involve giving "a" a value, and then using the ..cutting theorem?

But I don't think that's good enough.

Any other ideas?

Ino

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Re: Math help!

September 14, 2009, 06:47:56 PM

Does http://en.wikipedia.org/wiki/Intermediate_value_theorem help? I think it might :\.

delling

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Re: Math help!

September 14, 2009, 06:49:02 PM

40% (lowest pass mark) on my university maths paper and PROUD!

Now I run a tech website.

Goza

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Re: Math help!

September 14, 2009, 07:19:13 PM

Math. LOL!

Ino

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Re: Math help!

September 14, 2009, 07:26:21 PM

Quote from: Goza on September 14, 2009, 07:19:13 PM
Math. LOL!

I bet you know the answer.

Daekesh

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Re: Math help!

September 14, 2009, 07:29:25 PM

Work it backwards, tbh.

Moo

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Re: Math help!

September 21, 2009, 11:22:54 PM

Was there a diagram with this? :D

I am the crab of inevitable wisdom...

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