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Jan
23
reviewed Leave Open Probability of a m-long cycle
Jan
23
reviewed Close $Ax+By+Cz=D \text { has a solution iff } \gcd(\gcd(A,B),C)\mid D$
Jan
23
reviewed Close Find the sum of the series $\sum \limits_{n=1}^{\infty} \frac{2^{-n}(n+3)}{(n+1)(n+2)}$
Jan
21
answered How to show that $\sum_{k=1}^n k(n+1-k)=\binom{n+2}3$?
Jan
20
comment Mathmatical notation for a term of a polynomial
I think that's the closest there is to a standard notation. (But I honestly wouldn't use it without definition unless speaking to an audience of people who deal with generating functions all the time.)
Jan
15
answered How to solve for the parameters of the Gamma distribution given x for the 50th and 90th percentiles?
Jan
15
reviewed Leave Open Find the value of the integral $\int_{-\infty}^{\infty} \frac{1}{1+(a-y)^2} \frac{1}{1+y^2} dy$
Jan
15
reviewed Leave Open Find range of values for function to be onto
Jan
15
reviewed Leave Open Question about equivalent equations
Jan
15
comment Find a quartic (degree 4) polynomial with integer coefficients whose roots are the primitive 12th roots of unity
The polynomial $(z-\alpha_1) (z-\alpha_2) \cdots (z-\alpha_n)$ has roots $\alpha_1, \alpha_2, \cdots, \alpha_n$.
Jan
15
reviewed Leave Open Find a quartic (degree 4) polynomial with integer coefficients whose roots are the primitive 12th roots of unity
Jan
15
reviewed Close embedding projective plane in 4-space?
Jan
15
reviewed Close How do I prove $N(aHa^{-1})= aN(H)a^{-1}$
Jan
15
reviewed Leave Open Continuous homomorphisms and differentiable homomorphisms on $\mathbb{R}$
Jan
15
reviewed Leave Open Calculate integral $\int_0^1 e^{e^{e^x}} dx$
Jan
15
reviewed Leave Open What things should one know in order to enjoy their undergraduate degree?
Jan
14
reviewed Close Please help me - algebra
Jan
14
reviewed Leave Open Find a disassembly for a module.
Jan
14
reviewed Leave Open Modulo operation property
Jan
14
reviewed Leave Open Proving that the triangle inequality holds for a metric on $\mathbb{C}$