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 Curious
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Jun
15
comment If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
@BillDubuque That's also interesting. Thanks! (Y)
Jun
15
revised If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
edited body
Jun
15
comment If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
@MichaelBurr Thanks! I understood the way to solve it! However, can you please explain what Simplifying the even coefficients means? Why did the coefficients disappear? Also, why $x ^ 4 = x ^ 2$ instead of $x ^ 4 = - x ^ 2$?
Jun
15
accepted If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
Jun
15
comment If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
@Mathmo123 The information about ring yes, but what I'm thinking at is could it be that it's referring to zero divisors only? I think that it would make it easier, however is there a possible solution without supposing that $x$ is a zero divisor?
Jun
15
revised If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
added 10 characters in body
Jun
15
comment If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
@TobiasKildetoft The problem says that for all.
Jun
15
asked If $x ^ 6 = x$, prove that $x ^ 2 = x$, in a ring
May
5
accepted Move a point with known angle on a circle
May
5
comment Move a point with known angle on a circle
@Mann Got it! You're correct. Please post an answer. :)
May
5
comment Move a point with known angle on a circle
@Mann Isn't it supposed to be $Rsinπ$ instead (without /2)?
May
5
asked Move a point with known angle on a circle
Mar
12
awarded  Curious
Mar
12
awarded  Self-Learner
Dec
28
comment Align small circles on big circle at same distance
I already did, and that's exactly what I was thinking at. They just needed to be rotated with 90deg (PI / 2).
Dec
28
comment Align small circles on big circle at same distance
This is awesome! Thanks a lot!
Dec
28
accepted Align small circles on big circle at same distance
Dec
28
comment Align small circles on big circle at same distance
I'm testing it. Ok.
Dec
28
revised Align small circles on big circle at same distance
Replaced slashes with latex fraction
Dec
28
suggested approved edit on Align small circles on big circle at same distance