Loser66
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0 
Questions Asked

Loser66:
Group Title
Let S={(x,y, z) in R^3  0<x<1, y^2+z^2<=1}
find int (S) and bd (S)
Please, show me how to solve it.
 updated 2 days ago
 No Medals Yet
Mathematics

Loser66:
Group Title
Let H is subgroup generated by e, r^k j, that is \(H=<e, r^kj>\) for k =0,1,....,n1
When is H normal in \(D_n\)?
Please, help
 updated 3 days ago
 13 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
Let f: G> H be a surjective homomorphism of groups. Prove that H is abelian iff the commutator subgroup G' is contained in the kernel of f…
 updated 3 days ago
 59 replies
 1 Medal
Mathematics

Loser66:
Group Title
Need help understanding commutator subgroup
Please
 updated 4 days ago
 56 replies
 1 Medal
Mathematics

Loser66:
Group Title
Let G be a group. The commutator subgroup of G, often denoted G' , is the group generated by the set \(\{aba^{1}b^{1} ~~~~a, b\in G\}\)
P…
 updated 5 days ago
 25 replies
 2 Medals
Mathematics

Loser66:
Group Title
Need help understanding the solution
Please
 updated 5 days ago
 11 replies
 1 Medal
Mathematics

Loser66:
Group Title
How to prove \(X_n = \dfrac{n^2}{n+1}\) diverge?
 updated 5 days ago
 26 replies
 6 Medals
Mathematics

Loser66:
Group Title
Prove \(lim_{n>\infty} \dfrac{1}{n+1} =0\)
Please help
 updated 6 days ago
 12 replies
 4 Medals
Mathematics

Loser66:
Group Title
1+ 1/3+ 1/9+....+1/3^(n1) < 3/2??
Please, help
 updated 9 days ago
 14 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
Let A, B \(\in \mathbb R\) prove or disprove
\(f^{1}(A\B)=f^{1}(A)\f^{1}(B)\), \(f:\mathbb R\rightarrow \mathbb R\)
Please, help
 updated 9 days ago
 3 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
Flaws in a certain type of drapery material appear on the average of one in 150 square feet. If we assume a Poisson distribution, find the …
 updated 11 days ago
 No Medals Yet
Mathematics

Loser66:
Group Title
How to prove it?
 updated 12 days ago
 36 replies
 2 Medals
Mathematics

Loser66:
Group Title
How to prove f is onto?
\[f:\mathbb {R} \rightarrow (1,1)\\x\rightarrow \frac{x}{\sqrt{x^2+1}}\]
Please, help
 updated 13 days ago
 7 replies
 1 Medal
Mathematics

Loser66:
Group Title
Find inverse function of f(x) = x^2 (x in [1,4)])
please, help
 updated 14 days ago
 13 replies
 1 Medal
Mathematics

Loser66:
Group Title
Suppose that 2000 points are selected randomly and independently from the unit square {(x,y) 0<=x<1, 0<=y<1}
Let W equal number of points …
 updated 16 days ago
 9 replies
 2 Medals
Mathematics

Loser66:
Group Title
An urn contains 7 red and 11white balls. Draw one ball at random from the urn. Let X=1 if a red ball drawn, and let X =1 if a white ball is…
 updated 16 days ago
 12 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
Let P denote the multiplicative group of positive real numbers. Prove that {1} is the ONLY finite subgroup of P
@ikram002p group theory f…
 updated 18 days ago
 5 replies
 3 Medals
Mathematics

Loser66:
Group Title
How to prove:
\(x+yxy\leq x^2 +y^2\)
Please, help
 updated 19 days ago
 11 replies
 2 Medals
Mathematics

Loser66:
Group Title
Prove that the map
\[Z_2\rightarrow Z_2\\[r]\rightarrow [r]^2\]
for \(r\in Z\), is a ring homomorphism…
 updated 19 days ago
 76 replies
 1 Medal
Mathematics

Loser66:
Group Title
f:S>T
show equivalence of
a) f is one to one
…
 updated 20 days ago
 7 replies
 1 Medal
Mathematics

Loser66:
Group Title
Need help understanding the concept.
Please explain me.
 updated 21 days ago
 127 replies
 2 Medals
Mathematics

Loser66:
Group Title
For each question on a multiple choice test, there are 5 possible answers, of which exactly one is correct. If a student selects answers at …
 updated 21 days ago
 12 replies
 1 Medal
Mathematics

Loser66:
Group Title
In \(C([0,1])\) find d(f,g) where f(x) =1 and g(x) =x for <f,g> = \(\int_0^1f(x)g(x)dx\)
Please, help
 updated 21 days ago
 31 replies
 1 Medal
Mathematics

Loser66:
Group Title
How to determine whether X_n converges or diverges?( by using limit theorem)
\(X_n= \dfrac{(1)^n}{n+1}\)
Please, help
 updated 22 days ago
 21 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
How to find a sequence X_n if limsup X_n = 5 and liminf X_n =3?
Please help
 updated 23 days ago
 3 replies
 No Medals Yet
Mathematics

Loser66:
Group Title
How to get it?
\[\large \sum\limits_{k\geq n} \dfrac{1}{2^k}= \dfrac{1}{2^{n1}}\]
Please help
 updated 25 days ago
 31 replies
 3 Medals
Mathematics

Loser66:
Group Title
Help finish the stuff, please.
I don't know how to get the final answer.
 updated 25 days ago
 52 replies
 2 Medals
Mathematics

Loser66:
Group Title
If \(A\subset B\subset R\), A is not empty set and A, B bounded above. Show that \(sup A\leq sup B\)
Please, help
 updated 26 days ago
 No Medals Yet
Mathematics

Loser66:
Group Title
Please, help
Determine X_n converges or diverges
\(X_n=\dfrac{(1)^n*n}{n+1}\)
 updated 26 days ago
 14 replies
 4 Medals
Mathematics

Loser66:
Group Title
Need help understanding the concept.
Does \(\dfrac{(1)^n}{n}\) converge or diverge?
 updated 26 days ago
 46 replies
 2 Medals
Mathematics
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