BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

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by austin » Tue Dec 02, 2008 8:51 pm
(1001^2 - 999^2)/(101^2 - 99^2)

(a^2 - b^2) = (a+b) (a-b)

Nr = (1001^2 - 999^2) = (1001+999)(1001-999) = 2000 *2
Dr = (101^2 - 99^2) = (200*2)

Nr/Dr = 10
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by hwiya320 » Tue Dec 09, 2008 8:16 pm
wow, how did I NOT see that.
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by niraj_a » Tue Dec 09, 2008 8:18 pm
boo yah baby
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