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Lookingfor700GMAT
- Senior | Next Rank: 100 Posts
- Posts: 39
- Joined: Mon Feb 08, 2010 12:41 pm
2+2+2^2+2^3+2^4+2^5+2^6+2^7+2^8 = 2^9
I spent too long (in my view) manually adding up the numbers. Is there a faster way?
I spent too long (in my view) manually adding up the numbers. Is there a faster way?
