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1d
reviewed Approve suggested edit on Finding derivative of function of $x$ and $y$
1d
reviewed Approve suggested edit on Norm of symmetric positive semidefinite matrices
1d
reviewed Approve suggested edit on Number system, divisibility
1d
reviewed Approve suggested edit on Use the limit definition to find the slope of the tangent line at a point
1d
comment Use the limit comparison test on the following series: $\sum_{n=1}^\infty\frac{5n^3+1}{2^n(n^3+n+1)}.$
Hint: Use the inequality $2^n > n^2 $ for $n\geqslant{5}.$
1d
reviewed Approve suggested edit on SAT Algebra and elementary number theory
Jul
7
reviewed Reject suggested edit on Any finite ring is a direct sum of rings of prime power order
Jul
5
reviewed Approve suggested edit on Inner product in Maschke's Theorem
Jul
4
reviewed Approve suggested edit on Determine whether a series expansion will be a Taylor or Laurent series?
Jul
3
reviewed Edit suggested edit on A proof that $1=2$. May I know why it’s false?
Jul
3
revised A proof that $1=2$. May I know why it’s false?
added 54 characters in body
Jul
2
reviewed Approve suggested edit on Find all values of $c$ for which the following series converges $\sum_{n=1}^{\infty} \left(\dfrac{c}{n}-\dfrac{1}{n+1}\right)$
Jul
2
comment Help to prove the condition that a right half-open interval is not empty
If $a<b$ then $x_1=a \in [a,\ b)$ and $x_2=\frac{a+b}{2} \in [a,\ b).$
Jul
2
reviewed Approve suggested edit on The prime number theorem and the nth prime
Jul
1
revised How to evaluate the following integral? $\int \frac{x^6}{x^4-1} \, \mathrm{d}x.$
deleted 50 characters in body
Jul
1
answered How to evaluate the following integral? $\int \frac{x^6}{x^4-1} \, \mathrm{d}x.$
Jun
30
reviewed Approve suggested edit on to estimate variance, how to find expected value of x^2 [n]
Jun
27
reviewed Approve suggested edit on Finding this integra(Radon Transform)
Jun
27
reviewed Approve suggested edit on Where does modulus take place
Jun
27
reviewed Approve suggested edit on Values of $6 + \int_a^x \frac{f(t)}{t^2} dt = 2 \sqrt{x}$