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#1 2008-04-14 06:43:21
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
How do you absorb this fact? (3^2)(4^2)=12^2
Like I think: (3)(3)(4)(4) = (12)(12)
Then swap the order around in the multiplication.
(3)(4)(3)(4) = (12)(12)
(12)(12) = (12)(12)
Can anyone help me to remember this better
any other ways please, since I can't see
it spacially, since the two 2-D grids multiplied
become 4-D, but I guess the 4 sides are the
2 pairs of lengths; 3 and 4.
Thanks for any comments!
igloo myrtilles fourmis
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#2 2008-04-14 07:14:59
- SvenBee
- Member
- Registered: 2008-03-08
- Posts: 106
Re: How do you absorb this fact? (3^2)(4^2)=12^2
It's just one of those exponential properties that you need to remember: any two (or more) numbers with the same exponent being multiplied together results in the product of the numbers raised to the exponent.
similarlye...the red-headed stepchild of math.
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#3 2008-04-14 14:53:54
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: How do you absorb this fact? (3^2)(4^2)=12^2
Thanks, but I have to switch away from mercury for my
forum background color setting because the LaTeX is blurry.
igloo myrtilles fourmis
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#4 2008-04-14 15:01:38
- SvenBee
- Member
- Registered: 2008-03-08
- Posts: 106
Re: How do you absorb this fact? (3^2)(4^2)=12^2
No prob, I had mercury for about a day then realized I could custom all my pages with mozilla. Now all my webpages are dark blue, regardless of their original. >.<, hope the identity helped.
e...the red-headed stepchild of math.
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