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 Math help!



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September 14, 2009, 06:21:40 pm
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Offline Archz

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Math help!
« on: September 14, 2009, 06:21:40 pm »
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?
« Last Edit: September 14, 2009, 06:23:58 pm by Archz »

September 14, 2009, 06:47:56 pm
Reply #1

Offline Ino

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Re: Math help!
« Reply #1 on: September 14, 2009, 06:47:56 pm »

September 14, 2009, 06:49:02 pm
Reply #2

Offline delling

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Re: Math help!
« Reply #2 on: September 14, 2009, 06:49:02 pm »
40% (lowest pass mark) on my university maths paper and PROUD!
Now I run a tech website.

September 14, 2009, 07:19:13 pm
Reply #3

Offline Goza

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Re: Math help!
« Reply #3 on: September 14, 2009, 07:19:13 pm »
Math. LOL!

September 14, 2009, 07:26:21 pm
Reply #4

Offline Ino

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Re: Math help!
« Reply #4 on: September 14, 2009, 07:26:21 pm »
Math. LOL!

I bet you know the answer.

September 14, 2009, 07:29:25 pm
Reply #5

Offline Daekesh

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Re: Math help!
« Reply #5 on: September 14, 2009, 07:29:25 pm »
Work it backwards, tbh.
Moo

Itkovian
Daekesh
Caladan
Hetan


September 21, 2009, 11:22:54 pm
Reply #6

Offline Wicca

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Re: Math help!
« Reply #6 on: 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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