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New posts in algebra-precalculus
How does one evaluate $\sqrt[3]{x + iy} + \sqrt[3]{x - iy}$?
algebra-precalculus
Number of divisors of the form $(4n+1)$
combinatorics
algebra-precalculus
elementary-number-theory
A mason employed a certain number of workers to finish constructing a wall in a certain number of days.
algebra-precalculus
word-problem
Solving for the roots of a solvable quintic
algebra-precalculus
polynomials
Smallest Perfect Cube ending in 888
algebra-precalculus
elementary-number-theory
Product property for reversing coefficients for polynomials
abstract-algebra
algebra-precalculus
polynomials
ring-theory
Solving a biquadratic.
algebra-precalculus
polynomials
quadratics
How do I solve $\vert x\vert^{x^2-2x} = 1$?
algebra-precalculus
Is $n^7 - 77$ ever a Fibonacci number?
algebra-precalculus
number-theory
elementary-number-theory
contest-math
fibonacci-numbers
How do we know that the quadratic $3y^2-y-12$ has real root?
algebra-precalculus
quadratics
Where does the curve $x^y = y^x$ intersect itself? [duplicate]
algebra-precalculus
Given $f(x+T) = f(x) + a$, prove that $f(x) = \varphi(x) + {a \over T}x$, where $\varphi(x)$ is periodic with period $T$
algebra-precalculus
proof-verification
periodic-functions
How can you prove $\frac{n(n+1)(2n+1)}{6}+(n+1)^2= \frac{(n+1)(n+2)(2n+3)}{6}$ without much effort?
algebra-precalculus
induction
British Maths Olympiad (BMO) 2002 Round 1 Question 3 Proof without Cauchy-Schwarz?
algebra-precalculus
inequality
contest-math
a.m.-g.m.-inequality
cauchy-schwarz-inequality
Why do we factor polynomials the way we do?
algebra-precalculus
polynomials
factoring
Elementary proof that $\pi < \sqrt{5} + 1$
calculus
algebra-precalculus
Parametric equations for intersection between plane and circle
algebra-precalculus
multivariable-calculus
Why can't $|x-2|$ be less than zero?
algebra-precalculus
definition
arithmetic
absolute-value
How many four-digit positive integers are there that contain the digit $3$ and are divisible by $5$?
combinatorics
algebra-precalculus
solution-verification
Locus of centre of circle
geometry
algebra-precalculus
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