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May 15, 2012 06:35 am
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A company bought for its 7 offices 2 computers of brand N
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Problem Solving (PS)
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For any positive integer n, n>1, the "length" of n is the
Jan 21, 2012
11
Given a bag with 2 black balls and 3 white balls
Jan 18, 2012
4
What is the minimum value of the function y = x^2 - 4x - 5?
Jan 19, 2012
4
A company bought for its 7 offices 2 computers of brand N
Jan 17, 2012
3
1/x+1/y=1 xy=6, then what is the value of x^2+y^2?
Jan 19, 2012
3
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