# Some Maths problemsWatch

This discussion is closed.
Thread starter 15 years ago
#1
There are clearly people who are much more mathematically able than me on here, nevertheless, might be fun to exchange problems.

Something interesting from a P4 paper today, differentiate x.arcsin x, hence integrate arcsin x.
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15 years ago
#2
(Original post by fishpaste)
There are clearly people who are much more mathematically able than me on here, nevertheless, might be fun to exchange problems.

Something interesting from a P4 paper today, differentiate x.arcsin x, hence integrate arcsin x.
'hence' meaning using your answer to the first part?
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Thread starter 15 years ago
#3
(Original post by elpaw)
'hence' meaning using your answer to the first part?
Yes, because it can be done by a 1 * arcsin x dx integration, but this way is more interesting.
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15 years ago
#4
(Original post by fishpaste)
There are clearly people who are much more mathematically able than me on here, nevertheless, might be fun to exchange problems.

Something interesting from a P4 paper today, differentiate x.arcsin x, hence integrate arcsin x.
Here's an interesting one:

In a group of 6 people, show that there must be 3 people who know each other or don't know each other.
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Thread starter 15 years ago
#5
(Original post by theone)
Here's an interesting one:

In a group of 6 people, show that there must be 3 people who know each other or don't know each other.
Is that an "at least" 3 people, or exactly 3 people?
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15 years ago
#6
(Original post by theone)
Here's an interesting one:

In a group of 6 people, show that there must be 3 people who know each other or don't know each other.
something about pigeon holeing

What is that avatar? it makes you look childish
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15 years ago
#7
(Original post by 2776)
something about pigeon holeing

What is that avatar? it makes you look childish
I'm on a lookout for a better avatar at the moment thats actually 50x50!

And it's no such a simple problem, i mean exactly 3 people btw.
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15 years ago
#8
(Original post by fishpaste)
There are clearly people who are much more mathematically able than me on here, nevertheless, might be fun to exchange problems.

Something interesting from a P4 paper today, differentiate x.arcsin x, hence integrate arcsin x.
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15 years ago
#9
(Original post by elpaw)
doesnt work
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15 years ago
#10
(Original post by theone)
I'm on a lookout for a better avatar at the moment thats actually 50x50!

And it's no such a simple problem, i mean exactly 3 people btw.
make the avatar more manly, it looks like a girl if you scrunch your eyes up
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15 years ago
#11
(Original post by 2776)
make the avatar more manly, it looks like a girl if you scrunch your eyes up
Happy?
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15 years ago
#12
(Original post by 2776)
doesnt work
sorry, try http://users.ox.ac.uk/~chri1957/calculus.jpg
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15 years ago
#13
(Original post by elpaw)
sorry, try http://users.ox.ac.uk/~chri1957/calculus.jpg
you keen keen person
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15 years ago
#14
(Original post by theone)
Happy?
Its pretty good,
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15 years ago
#15
(Original post by 2776)
you keen keen person
what do you mean by that? you're not going to turn into LH?
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15 years ago
#16
(Original post by 2776)
Its pretty good,
Thank you
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15 years ago
#17
(Original post by theone)
Thank you
egan will like you.
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15 years ago
#18
(Original post by elpaw)
what do you mean by that? you're not going to turn into LH?
whats this about LH?I dont quite get the connection
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15 years ago
#19
(Original post by 2776)
whats this about LH?I dont quite get the connection
he made a long *****y thread about vienna being too keen.
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15 years ago
#20
(Original post by elpaw)
he made a long *****y thread about vienna being too keen.
Yes but this is different. You have actually took the time to write something down, scan it, upload it, then post it here. Too much work.
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