Krysten
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384
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 Feb25 comment Number Theory - Proof of divisibility by $3$ Yes i do that if x = y(mod3) then x and y divide 3? Feb25 asked Number Theory - Proof of divisibility by $3$ Feb18 accepted Injective and Surjective Functions Feb18 comment Injective and Surjective Functions thanks. it makes sense to create a proof that includes all possible cases. Feb17 comment Injective and Surjective Functions I edited my proof for a. Please confirm that this is valid. Feb17 revised Injective and Surjective Functions added 409 characters in body Feb17 asked Injective and Surjective Functions Feb17 accepted Evaluate $\int \cos^3 x\;\sin^2 xdx$ Feb14 comment Evaluate $\int \cos^3 x\;\sin^2 xdx$ good to know. thanks Feb11 awarded Editor Feb11 revised Evaluate $\int \cos^3 x\;\sin^2 xdx$ added 4 characters in body Feb11 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 Feb11 asked Evaluate $\int \cos^3 x\;\sin^2 xdx$ Feb10 accepted Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$ Feb9 comment Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$ How would I refer to the ordered pairs then? Feb9 asked Equivalence relation $(a,b) R (c,d) \Leftrightarrow a + d = b + c$ Jan29 comment Equivalence Classes of this Relation on the integers : $a + b^2 \equiv 0\pmod{2}$. I proved it by showing R to be reflexive, symmetric, and transitive. I just don't have much experience with equivalence classes. Jan28 comment Equivalence Classes of this Relation on the integers : $a + b^2 \equiv 0\pmod{2}$. I concur. I probably should have been more specific and noteed that I had already proven that R was an equivalence relation. Jan27 awarded Scholar Jan27 accepted Equivalence Classes of this Relation on the integers : $a + b^2 \equiv 0\pmod{2}$.