Matthew Pressland
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 Nov18 reviewed Approve $\lim_{x \to 0} \frac{x^n}{\cos\sin x -\cos x}=l$, find $n$ such that $l$ is non zero finite real Nov18 reviewed Edit Definite integral of $e^{-by^2}/(y^2-c^2)$ Nov18 reviewed Approve Calculus integration problem. [HW help] Nov18 reviewed Approve Why are group theory and ring theory a part of abstract algebra? Nov18 reviewed Approve If $\int^{1}_{0} \frac{\tan^{-1}x}{x} dx = k \int^{\pi/2}_{0} \frac {x}{\sin x} dx$, find $k$. Nov18 reviewed Looks OK if f(x) is the polynomial (coeff of leadin term is unity) in 'x' of least degree such that f(1)=5 , f(2)=4, f(3)=3, f(4)=2, f(5)=1, then f(0)=? Nov18 reviewed Approve How to say this proof correctly: if $d\mid a$ and $d\mid b$ then $d\mid (a-b)$. Nov18 reviewed Reject Proving Series Convergence Using Taylor Polinomials Nov18 reviewed Approve Finding -1 to irrational powers Nov18 reviewed Edit Mean, Expected Value, or Expectation of a Constant? Nov18 reviewed Approve Proving Series Convergence Using Taylor Polinomials Nov18 reviewed Edit What $t$ coefficient should I choose for a Bezier curve? Nov18 reviewed Leave Open Prove $\log_5{30}<\log_8{81}$ Nov18 reviewed Looks OK Expectation of product of indicator functions Nov18 reviewed Approve Fundamental group of a space of infinite genus and an accumulation point Nov18 reviewed Approve Necessary and sufficient condition under which a Galois extension is cyclic Nov18 reviewed Leave Open how many unique patterns exist for a NxN grid Nov18 reviewed Close Prove that is $A$ is skew-symmetric, then $X^TAX = 0$ for all $X = [x_1 x_2 \cdots x_n]^T$ Nov18 reviewed Edit Countably many worlds and Universal Sentence. Nov18 reviewed Approve Omar Khayyam's method for solving cubics