Math Is Fun Forum
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#1 2007-12-03 06:42:23
- tony123
- Member
- Registered: 2007-08-03
- Posts: 229
easy2
find the roots
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#2 2007-12-03 06:46:30
- johnathon2
- Real Member
- Registered: 2007-09-28
- Posts: 15
Re: easy2
how all it is is a bunch of scrible lines how do i get to the problem
great things come from great minds
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#3 2007-12-03 06:47:37
- Ricky
- Moderator
- Registered: 2005-12-04
- Posts: 3,791
Re: easy2
Tony, find a formula for sum from i = 1 to n of 2i. Then simply calculate the constant, and use the quadratic equation.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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#4 2007-12-03 07:49:12
- mathsyperson
- Moderator
- Registered: 2005-06-22
- Posts: 4,900
Re: easy2
No quadratic formula needed. This is a very elegant problem, and it turns out to factorise very easily.
Why did the vector cross the road?
It wanted to be normal.
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#5 2007-12-03 07:55:04
- Daniel123
- Member
- Registered: 2007-05-23
- Posts: 663
Re: easy2
I get x = 1002 or - 1001.. am I right?
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