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 Curious
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Jun
26
accepted prove that if $5| n^2$ then $5|n$ by contraposition
May
13
accepted prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
May
13
awarded  Curious
May
12
comment prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
i got it wrong - it wasn't blank
May
12
comment prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
ok, thanks for the help
May
12
comment prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
We weren't taught congruence in this exam until the next one, so there must be a different way to solve it? sorry i didn't specify later, but ill take it as an answer
May
12
comment prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
we weren't taught congruence at that point yet
May
12
asked prove that $n^2 \bmod 4 = 0$ or $1$ for all integers
May
12
revised prove that if $5| n^2$ then $5|n$ by contraposition
deleted 12 characters in body
May
12
accepted explicit formula for alternating sequence
May
12
asked explicit formula for alternating sequence
May
12
asked prove that if $5| n^2$ then $5|n$ by contraposition
Apr
3
accepted Integration of improper integrals
Apr
3
comment Integration of improper integrals
@Mattos ok what is the correct way to solve?
Apr
3
asked Integration of improper integrals
Feb
23
comment how do i know when to reevalute limits on indefinite integral?
I think you forgot 1/5, so it should pi^2/90
Feb
23
comment how do i know when to reevalute limits on indefinite integral?
ok that clears things up thanks
Feb
23
accepted how do i know when to reevalute limits on indefinite integral?
Feb
23
comment how do i know when to reevalute limits on indefinite integral?
@amWhy corrected, still two different answers with and without reevaluting limits. but still doesnt help answer my question, should I always reevalute the limits like Git Gud said? even if it takes the form like the last integral?
Feb
23
revised how do i know when to reevalute limits on indefinite integral?
edited body