Krysten
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 Feb 25 comment Number Theory - Proof of divisibility by $3$ @yunone, how could you prove that 3|x by using x=y(mod 3) if 3|(x-y) only Feb 25 accepted Number Theory - Proof of divisibility by $3$ Feb 25 comment Number Theory - Proof of divisibility by $3$ @Andres, thanks that helped a lot Feb 25 awarded Commentator Feb 25 comment Number Theory - Proof of divisibility by $3$ Yes i do that if x = y(mod3) then x and y divide 3? Feb 25 asked Number Theory - Proof of divisibility by $3$ Feb 18 accepted Injective and Surjective Functions Feb 18 comment Injective and Surjective Functions thanks. it makes sense to create a proof that includes all possible cases. Feb 17 comment Injective and Surjective Functions I edited my proof for a. Please confirm that this is valid. Feb 17 revised Injective and Surjective Functions added 409 characters in body Feb 17 asked Injective and Surjective Functions Feb 17 accepted Evaluate $\int \cos^3 x\;\sin^2 xdx$ Feb 14 comment Evaluate $\int \cos^3 x\;\sin^2 xdx$ good to know. thanks Feb 11 awarded Editor Feb 11 revised Evaluate $\int \cos^3 x\;\sin^2 xdx$ added 4 characters in body Feb 11 comment Evaluate $\int \cos^3 x\;\sin^2 xdx$ integral cos^3(x) sin^2(x) dx = 1/30 sin^3(x) (3 cos(2 x)+7)+constant Feb 11 asked Evaluate $\int \cos^3 x\;\sin^2 xdx$ Feb 10 accepted Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$ Feb 9 comment Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$ How would I refer to the ordered pairs then? Feb 9 asked Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$