New posts in Algebra Precalculus

How would you define $>$ and $<$ on $\mathbb{C}$?

Minimum of $\left|1-\left(ab+bc+ca\right)\right|+\left|1-abc\right|$

Range of $\frac{\cos\theta_1+\cdots+\cos\theta_{10}}{\sin\theta_1+\cdots+\sin\theta_{10}}$ given $\sin^2\theta_1+\cdots+\sin^2\theta_{10}=1$

What is wrong with my 'proof' of $i=1$?

Proving $abcd+3\geq a+b+c+d$

Calculate $x^3 + \frac{1}{x^3}$

Why is $\log_{-7}49$ undefined instead of $2$?

Can $S_n=a_1a_2+a_2a_3+\cdots+a_na_1=0$ if $a_i=±1$ for $n=28$ and $n=30$?

Express roots of equation $acx^2-b(c+a)x+(c+a)^2=0$ in terms of $\alpha, \beta, $

Given a finite number of stones. We place every stone on an integer. Prove that, given different movements, we can only make finite number of moves