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New posts in algebra-precalculus
Solving $x!=n$ without a calculator for large $n$
algebra-precalculus
systems-of-equations
approximation
factorial
Find the roots of the polynomial $x^4+2x^3-x-1=0$.
algebra-precalculus
polynomials
contest-math
roots
A simple proof that $\bigl(1+\frac1n\bigr)^n\leq3-\frac1n$?
algebra-precalculus
Find the $\frac mn$ if $T=\sin 5°+\sin10°+\sin 15°+\cdots+\sin175°=\tan \frac mn$
algebra-precalculus
trigonometry
summation
contest-math
How to solve an exponential and logarithmic system of equations?
algebra-precalculus
logarithms
systems-of-equations
Square Root of $x^2$
algebra-precalculus
Why does basic algebra provide one value for $x$ when there should be two?
algebra-precalculus
How can I write an equation that matches any sequence?
algebra-precalculus
My Daughter's 4th grade math question got me thinking
algebra-precalculus
inequality
Solving $x + 3^x < 4$ analytically
algebra-precalculus
closed-form
lambert-w
lagrange-inversion
Integration of rational of polynomials
algebra-precalculus
polynomials
partial-fractions
rational-functions
A system of equations with 5 variables: $a+b+c+d+e=0$, $a^3+b^3+c^3+d^3+e^3=0$, $a^5+b^5+c^5+d^5+e^5=10$
algebra-precalculus
trigonometry
systems-of-equations
symmetric-polynomials
College algebra Books
algebra-precalculus
reference-request
fractions
book-recommendation
Inequality with two absolute values
algebra-precalculus
inequality
absolute-value
Extraneous solution when solving $x^2+x+1=0$ by getting $x^2=1/x$
algebra-precalculus
problem-solving
A highschool factoring problem
algebra-precalculus
Prove that $x^2<\sin x \tan x$ as $x \to 0$ [duplicate]
calculus
algebra-precalculus
limits
trigonometry
inequality
Solving Equation through inequalities.
algebra-precalculus
elementary-number-theory
inequality
roots
a.m.-g.m.-inequality
Is $\large \frac {\pi}{e}$ rational, irrational, or trandescendal?
algebra-precalculus
number-theory
pi
transcendental-numbers
How to find the sum of the following series
algebra-precalculus
sequences-and-series
limits
convergence-divergence
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