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New posts in algebra-precalculus
Showing $[(fg)h]_n = [f(gh)_n]$ in the linear algebra $F^\infty$
linear-algebra
algebra-precalculus
Write the expressoin in terms of $\log x$ and $\log y \log(\frac{x^3}{10y})$
algebra-precalculus
logarithms
Can congruence or similarity be used to find the length of a triangle when some of its sides have odds proportionality?
algebra-precalculus
euclidean-geometry
Is there an algorithm to compute the degree of a polynomial?
abstract-algebra
algebra-precalculus
polynomials
How to prove that $\sum\limits_{i=0}^p (-1)^{p-i} {p \choose i} i^j$ is $0$ for $j < p$ and $p!$ for $j = p$
linear-algebra
algebra-precalculus
binomial-coefficients
How to compare logarithms $\log_4 5$ and $\log_5 6$?
calculus
algebra-precalculus
inequality
logarithms
a.m.-g.m.-inequality
How to prove $\sum_{i=1}^n \frac{a_i b_i}{a_i+b_i} \sum^n_{i=1} (a_i+b_i) \le (\sum_{i=1}^n a_i)(\sum_{i=1}^n b_i) ,a_i>0,b_i>0$?
algebra-precalculus
inequality
best books for learning algebra
algebra-precalculus
education
$\sum_{k=0}^\infty \left[ \frac{n+2^k}{2^{k+1}} \right] = ?$ (IMO 1968)
algebra-precalculus
elementary-number-theory
summation
contest-math
Show $\max{\{a,b\}}=\frac1{2}(a+b+|a-b|)$
real-analysis
algebra-precalculus
proof-verification
absolute-value
Prove that all roots of $\sum_{r=1}^{70} \frac{1}{x-r} =\frac{5}{4} $ are real
algebra-precalculus
inequality
polynomials
complex-numbers
roots
Subtracting expressions with radicals
algebra-precalculus
radicals
Where is the mistake in my reasoning?
algebra-precalculus
proof-verification
Simplify $\dfrac{\sqrt{m+x}+\sqrt{m-x}}{\sqrt{m+x}-\sqrt{m-x}}$
algebra-precalculus
Prove $\sqrt{2}$ is between $\dfrac{a}{b}$ and $\dfrac{a+2b}{a+b}$ [closed]
algebra-precalculus
elementary-number-theory
What is $(26+15(3)^{1/2})^{1/3}+(26-15(3)^{1/2})^{1/3}$?
algebra-precalculus
How can you find the cubed roots of $i$?
algebra-precalculus
complex-numbers
What exactly do systems of equations represent?
algebra-precalculus
systems-of-equations
Why do these "equal" logarithms give different answers
algebra-precalculus
logarithms
Can the quadratic formula be used with variable coefficients? [closed]
algebra-precalculus
quadratics
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