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Jan
12
comment Sum: $\sum_{n=1}^\infty\prod_{k=1}^n\frac{k}{k+a}=\frac{1}{a-1}$
@HansLundmark: Right! Why is it constant Jack? -1 till this is resolved.
Jan
12
revised Sum: $\sum_{n=1}^\infty\prod_{k=1}^n\frac{k}{k+a}=\frac{1}{a-1}$
removed period used to end english.
Jan
12
comment Locus of line segments
That is ok :-) just saying for future reference. (Also suggest reading the blurb of the tag...)
Jan
12
comment Locus of line segments
graph-theory is a tag about a different subject.
Jan
12
revised Locus of line segments
edited tags
Jan
12
revised Proving that $1+2^m+3^m+…n^m$ is divisible by $(n+1)$
edited tags
Jan
12
revised How to prove that every number, such that it's square root is integer, has odd number of divisors?
edited tags
Jan
12
revised BMO preparatory question
edited tags
Jan
12
revised Find all primes different from three for which $(3|p)=1$
edited tags
Jan
12
revised Divisibility Question.
edited tags
Jan
12
comment Why doesn't every integral from 0 to $2\pi$ equal zero?
$\int_{a}^{b} f(x) dx = 0$, make the substitution $t = (x-a)(x-b)$...
Jan
12
comment Geometry question: translating a rectangle according to a specific rule
Why don't you describe what you are doing, in the question statement?
Jan
12
comment For finding limits of functions, when are graphs deceiving?
Not sure if it qualifies though...
Jan
12
answered For finding limits of functions, when are graphs deceiving?
Jan
12
comment Convergence of the sequence $x_n=\tan x_{n-1}$
This is likely a dupe...
Jan
12
comment Geometry question: translating a rectangle according to a specific rule
Are you translating the rectangle around line b to make the right corners coincide? From the figure it seems like you are doing some rotation too...
Jan
12
answered How prove there exsit $M$ such $a_{n}\le M$
Jan
12
revised Fibonacci identity: $f_{n-1}f_{n+1} - f_{n}^2 = (-1)^n$
added 29 characters in body
Jan
12
revised Find the highest power of two in the expression.
edited tags
Jan
12
revised Fibonacci identity: $f_{n-1}f_{n+1} - f_{n}^2 = (-1)^n$
added 35 characters in body