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yangtheary

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13 years, 211 days
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These are questions asked by yangtheary

calculate (Help me ! )...

yangtheary 290 Maple
integration int
August 29 2013
1 0

calculate \int_{0}^{\infty}\frac{sin^3x dx}{x^3} by using

Help to Find x and y...

yangtheary 290 Maple
solve
August 29 2013
2 1

How many Zero in that number?...

yangtheary 290 Maple
number-theory
August 29 2013
1 0

2014! How many Zero in that number?

Find a sequence...

yangtheary 290 Maple
sequence
August 28 2013
1 2

Fine a(n) of sequence 1 , 3 , 6 , 12, 24 ,...  ,(n=1,2,3,....)

Find the value of the sum...

yangtheary 290 Maple
number-theory
August 27 2013
1 0

Let p be the product of all non-zero digits of the positive integer

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