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Mathematics
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kojak
  • Member for 8 years
  • Last seen more than 6 years ago
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question
8
Proving that if $ad-bc = \pm 1$, then $\gcd(x,y) = \gcd(ax +by, cx + dy)$
Sep 1, 2016
question
4
Show that if $a,b \in \mathbb{N}$ have remainders in the set $\{1,4\}$ after division by $5$, then so does their product.
Sep 8, 2016
question
3
If $\{a_n^2\}$ is convergent, $\{a_n\}$ is convergent
Feb 14, 2017
question
2
Using the Chinese Remainder Theorem to prove that a system of equations has a solution in $\mathbb{N}$ if and only if certain conditions are met
Sep 27, 2016
answer
2
Notation of definition
Feb 19, 2017
answer
2
How would you write this series into a for loop?
Feb 23, 2017
question
1
GCD logical problem
Sep 1, 2016
question
1
Prove by careful induction that if $r \in \mathbb{N}$, then $b^{2^r} - 1 = (b-1)(b+1)(b^2 + 1)(b^{2^{2}} + 1) ... (b^{2^{r-1}} + 1)$
Sep 8, 2016
question
1
Using the definition of congruence and Fermat's Little Theorem
Sep 15, 2016
question
1
Fermat's factorization algorithm
Sep 22, 2016
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Iteration of a QTreeWidget