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Badong
i am a math maj0r,, i love math wen i am in high scho0l, but ryt n0w, i found math really difficult.. My hobbies nd interest is to surf d net and txting..,
Let @ = (a1 a2 a3...ak) be a cycle of the length k in Sn. if Pie is element of Sn, prove that....?
pie@pie^-1 = (pie(a1) pie(a2) pie(a3)..pie(ak))
1 AnswerMathematics1 decade agolet H & K be subgroups of G. if we define HK = {hk: h ele H & k ele K}, prove that HK is a subgroup of G iff?
show your complete proof.
remark: the set HK is not always a subgroup.
2 AnswersMathematics1 decade agoLet R b the relation on the set of order pairs Z+ sch that [(a.b),(c,d)] e R iff ad=bc.?
show that R is an equivalence relation. thanks!
3 AnswersMathematics1 decade agosuppose R and S are reflexive relations on a set A. prove/disprove that: RuS is reflexive, RnS is reflexive?
prove the following. tanx
2 AnswersMathematics1 decade agoFind the dy/dx: y= (ln x)^1/2x y= (ln 3x)^ln3x y= (cos 3x)^sinx?
3 AnswersMathematics1 decade ago________ lim \ 4x^2 + x \9x^2 -3x x-> infinity _______ lim \ 9x^2+x - 3x x->infinity?
Limit of infnty
1 AnswerMathematics1 decade agofind the limit. lim cos ax-cos bx/x2 x->0?
Cos a - cos b
=-2sin1/2(a+b)sin1/2(a-b)
2 AnswersMathematics1 decade agoSolve the ff: 2Xsub1+4Xsub2+6Xsub3=-12 2Xsub1-3Xsub2-4Xsub3=15 3Xsub1+4Xsub2+5Xsub3=-8?
Xsub1 + Xsub2 + 3Xsub3 = 12
2Xsub1 + 2Xsub2 + 6Xsub3 = 6
1 AnswerMathematics1 decade agof: A -> B g: B -> C h: C -> D prove that h o (g o f) = (h o g) o f?
All about composit function
3 AnswersMathematics1 decade agoA is a subset of B if and only if B' is a subset of A'.prove!?
1 AnswerMathematics1 decade agoA is a subset of B if and only if A n B'=empty set.,prove!?
1 AnswerMathematics1 decade agoA u B = (A n B') u (A' n B) u (AnB), prove!?
1 AnswerMathematics1 decade agoA is a subset of B if and only if a n B' = empty, prove?
1 AnswerMathematics1 decade ago