# Πάρτη Κοηλί

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# 99 Posts

 1d asked What is $-i$ exactly? Apr19 answered Is the following statement true? Why? Apr19 answered With the binomial expansion of $(3+x)^4$ express $(3 - \sqrt 2)^4$ in the form of $p+q\sqrt 2$ Apr19 answered Derivative of $\sin(e^{-x})$ Apr14 asked Factoring a long expression in the form $(a+b)^3 + (c - b)^3 - (c+b)^3$ Apr13 asked $x = \sqrt[3]{3} + \frac{1}{\sqrt[3]{3}}$, what is $3x^3 - 9x$? Apr12 answered The inverse function of $e^{x^2}$ Apr12 answered Mathematical Expressions; School Homework Apr12 answered How can I prove that $xy\leq x^2+y^2$? Mar30 asked Number of four-term GPs consisting of positive integers under 100: how to write a program Mar6 answered Show that the sequence $\sqrt{2},\sqrt{2\sqrt{2}},\sqrt{2\sqrt{2\sqrt{2}}},…$ converges and find its limit. Feb27 answered how to solve nested logarithms Feb24 answered Filling the gap in knowledge of algebra Feb22 answered What makes Pi special? What really makes it Irrational? Feb17 answered Euler's totient function Feb13 answered Proof Regarding Property of Odd Integers Feb12 answered Why does a number like $2^n\bmod 7$ have a repeating pattern? Feb11 answered The prime numbers that divide $10^4-1$ Feb10 answered Real numbers in math Feb9 answered Find $a, b, c, d \in \mathbb{Z}$ such that $2^a=3^b5^c+7^d$