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January 27, 2015

January 27, 2015

Posted by **Liz** on Sunday, February 3, 2008 at 8:01pm.

- Math -
**Damon**, Sunday, February 3, 2008 at 8:43pmI can not do the symmetry with keyboard

remember rows and columns start wit 0, so we need 7 rows

1

1 1

1 2 1

1 3 3 1

1 4 6 4 1

1 5 10 10 1

1 6 15 20 15 6 1 ah ha

so

a^6 + 6 a^5 b + 15 a^4 b^2 + 20 a^3 b^3 + 15 a^2 b^4 + 6 a b^5 + b^6

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