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 Nov 28 accepted Searching sum of constants in a polynomial Nov 28 accepted How to get value of $a^2b^2+b^2c^2+c^2a^2$ Nov 28 accepted How many ordered triples of integers which are between 0 and 10 inclusive do we actually have if $a * (b+c) = a * b +c$ Nov 28 asked How many ordered triples of integers which are between 0 and 10 inclusive do we actually have if $a * (b+c) = a * b +c$ Jul 29 awarded Critic Jul 29 asked Searching sum of constants in a polynomial Jul 29 accepted How to search quadratic function Jul 29 asked How to get value of $a^2b^2+b^2c^2+c^2a^2$ Jul 28 asked How to search quadratic function Jan 18 accepted What is limit of: $\displaystyle\lim_{x\to 0}$$\tan x - \sin x\over x Jan 16 awarded Student Jan 16 comment What is limit of: \displaystyle\lim_{x\to 0}$$\tan x - \sin x\over x$ @CalvinLin I don't know it (Maclaurin expansion). I'm stuck in $\lim_{x\to 0}$$(\sin x (1 - \cos x))\over x^n \cos x. Jan 16 asked What is limit of: \displaystyle\lim_{x\to 0}$$\tan x - \sin x\over x$ Nov 15 accepted What is the value of integral $\ln x$? Nov 14 comment What is the value of integral $\ln x$? I can't find it on wikipedia Nov 14 asked What is the value of integral $\ln x$? Nov 10 accepted What is the exact value of $1\over0$? Nov 10 asked What is the exact value of $1\over0$? Oct 25 suggested rejected edit on How to simplify an expression like this: $(x^2+x^{-2}-2)^{1/2}$ Oct 23 awarded Teacher