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New posts in algebra-precalculus
Find all functions on the non-zero reals to itself satisfying $f(xy)=f(x+y)(f(x)+f(y))$
algebra-precalculus
functions
functional-equations
Number of Unique Sequences with Circular Shifts
sequences-and-series
combinatorics
algebra-precalculus
combinations
binary
Combinatorics - Painting the Unit Squares of a 3x3 Square
combinatorics
algebra-precalculus
Proving Quadratic Formula
algebra-precalculus
polynomials
quadratics
A prime number wall pool table
geometry
algebra-precalculus
number-theory
elementary-number-theory
How are inequalities from IMO built?
algebra-precalculus
inequality
contest-math
let $f(\frac{x}{3})+f(\frac{2}{x})=\frac{4}{x^2}+\frac{x^2}{9}-2$ then find $f(x)$
algebra-precalculus
functional-equations
How to solve equations of this form: $x^x = n$?
algebra-precalculus
A fun Valentine's day chocolate box optimization problem...
calculus
algebra-precalculus
optimization
Solving a radical equation for real $x$
algebra-precalculus
functions
roots
radicals
Find the value of $ab+ 2cb+\sqrt3 ac$?
algebra-precalculus
How to prove $f(n)=\sum_{k=0}^n\binom{n+k}{k}\left(\frac{1}{2}\right)^k=2^n$ without using the induction method? [duplicate]
combinatorics
algebra-precalculus
Total number of divisors of factorial of a number
algebra-precalculus
number-theory
elementary-number-theory
factorial
prime-factorization
how can one solve for $x$, $x =\sqrt{2+\sqrt{2+\sqrt{2\cdots }}}$ [duplicate]
algebra-precalculus
nested-radicals
Can you write a non-piecewise equation that describes an arbitrary shape?
geometry
algebra-precalculus
graphing-functions
plane-curves
real values of $x$ in $\sqrt{5-x} = 5-x^2$.
algebra-precalculus
Profit, Loss Dishonest seller
algebra-precalculus
For positive real numbers $a,b,c$ such that $a+b+c=1$. Prove that...
algebra-precalculus
inequality
a.m.-g.m.-inequality
How many natural number between $100$ and $1000$ exist which can be expressed as sum of 10 different primes.
algebra-precalculus
number-theory
elementary-number-theory
prime-numbers
modular-arithmetic
How to find the inverse of $f(x)=x+ \frac{x^{3}}{1+x^{2}}$?
algebra-precalculus
functions
inverse-function
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