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Aug
3
reviewed Approve A balloon rises at a certain rate (in body), What is velocity of balloon after 40 seconds?
Aug
3
reviewed Reject How to calculate the partition function of a given distribution?
Jul
15
reviewed Close Inverse problem can't solve it,:$2^{m+1}+1\mid 3^{2^{m}}+1$,when$2^{m+1}+1$ is prime number,
Jul
15
reviewed Leave Open Riddle: 1 question to know if the number is 1, 2 or 3
Jul
15
reviewed Close how to check whether feasible solutions exist for linear programming
Jul
15
reviewed Close Second order pde in 2 variables
Jul
15
reviewed Close rectangle of a rectangle
Jul
15
reviewed Close How to determine the MLE of $E(x)$
Jul
15
reviewed Close To show that $e^x > 1+x$ for any $x\ne 0$
Jul
7
reviewed Close Intersection of two lines in complex numbers given four points
Jul
7
reviewed Close Why is this statement true?
Jul
2
reviewed Approve Elementary number theory proofs using functions
Jul
2
reviewed Leave Open How to show $E(XE(Y\mid F)=E(E(X\mid F)Y)$?
Jul
2
reviewed Leave Open Second order nonlinear differential equation $x''+Hx =A(1-J/(2x^2))$
Jul
2
reviewed Close Usefulness of prime numbers as Threading Timeouts in programming
Jul
2
reviewed Leave Open Evaluate the following Integration--
Jul
2
reviewed Close Find the integral closure of an integral domain in its field of fractions
Jul
2
reviewed Close dependent variable change attribution
Jul
2
reviewed Looks OK Can we take out a constant while differentiating?
Jul
2
reviewed Approve suppose $a_n>1$ $a_n$is non-decreasing and bounded. prove: $\sum_{n=-1}^{\infty}(1-\frac{a_n}{a_{n+1}})\frac{1}{\sqrt{a_{n+1}}}$ converges