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New posts in algebra-precalculus
Computing a limit of a sum mixed with product.
real-analysis
sequences-and-series
algebra-precalculus
limits
infinite-product
Cancel down the fraction $\dfrac{(x-y)(\sqrt[3]{x}+\sqrt[3]{y})}{\sqrt[3]{x^2}-\sqrt[3]{y^2}}$ [closed]
algebra-precalculus
radicals
For every positive integer n there exists an odd integer m such that $2^{2n} + m$ is a perfect square.
algebra-precalculus
square-numbers
Proving that $\operatorname{trace}(T) =\langle Te_1,e_1\rangle +\cdots+\langle Te_n,e_n\rangle $?
linear-algebra
algebra-precalculus
vector-spaces
linear-transformations
Proof on Euler totient function
algebra-precalculus
elementary-number-theory
functions
totient-function
Is there any good reason not to define $0^0=1$ , such as contradictions in algebra or arithmetic?
algebra-precalculus
Why does partial fraction decomposition always work?
algebra-precalculus
fractions
partial-fractions
Find a trigonometric equation describing a given solution set
algebra-precalculus
What are the names in English for Alterando, Invertendo, Componendo and Dividendo?
algebra-precalculus
terminology
What are some examples of Idempotent functions?
algebra-precalculus
functions
functional-equations
Why are the domains for $\ln x^2$ and $2\ln x$ different?
algebra-precalculus
logarithms
What is the smallest possible value of $\lfloor (a+b+c)/d\rfloor+\lfloor (a+b+d)/c\rfloor+\lfloor (a+d+c)/b\rfloor+\lfloor (d+b+c)/a\rfloor$?
algebra-precalculus
contest-math
ceiling-and-floor-functions
Prove $e^{i \pi} = -1$ [duplicate]
algebra-precalculus
Solve $ 1 + \frac{\sqrt{x+3}}{1+\sqrt{1-x}} = x + \frac{\sqrt{2x+2}}{1+\sqrt{2-2x}} $
algebra-precalculus
radicals
Find this $a,b,c$ such that $\sqrt{9-8\sin 50^{\circ}}=a+b\sin c^{\circ}$
algebra-precalculus
trigonometry
Analytical solution for a system of three bivariate polynomials of degree two in three unknowns
algebra-precalculus
polynomials
systems-of-equations
Factoring when multiplying rational functions
algebra-precalculus
rational-functions
How do I parametrize a circle that's not centered at the origin?
calculus
algebra-precalculus
geometry
multivariable-calculus
trigonometry
Show that $\sqrt[3]{3\sqrt{21} + 8} - \sqrt[3]{3\sqrt{21} - 8} = 1$
algebra-precalculus
arithmetic
radicals
Write $x^k - y^k$ as the product of two factors.
algebra-precalculus
factoring
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