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New posts in algebra-precalculus
Is $f(\theta) = 1 - \alpha \sin{\theta}$ an odd function?
algebra-precalculus
curves
even-and-odd-functions
Inequality with binomial coefficients $ \binom{2n-1}{n} + \binom{2n-1}{n+1} + \cdots + \binom{2n-1}{n+z} \geq (2z+3)\binom{2n-2}{n+z} $
algebra-precalculus
inequality
binomial-coefficients
upper-lower-bounds
Finding $x^4 + y^4 + z^4$ using geometric series
algebra-precalculus
contest-math
Prove that there is $n\in\mathbb{N}$ such that $n!$ starts with 1996
algebra-precalculus
elementary-number-theory
Logarithms and exponents with variables
algebra-precalculus
Collatz-ish Olympiad Problem
algebra-precalculus
sequences-and-series
Complex slope of line $a\bar{z}+\bar{a}z+b = 0$
algebra-precalculus
Prove that $ ax^2+bx+c=0 $ has at least one root in $(0,1)$ if $10a+12b+15c=0$
calculus
algebra-precalculus
polynomials
roots
How to factor $4d^2 -16w^2 -4cd+c^2$ ( from Hart William L., Intermediate Algebra, 1948)
algebra-precalculus
soft-question
quadratics
factoring
Is zero to the power of an imaginary number still zero?
algebra-precalculus
complex-numbers
exponentiation
On The Construction Of An Ellipse
algebra-precalculus
geometry
conic-sections
geometric-construction
How to prove that $3^{20}+4^{9}+6^{10}$ is composite? [closed]
algebra-precalculus
Factorisation of quadratics [duplicate]
algebra-precalculus
ring-theory
quadratics
factoring
Place the numbers by their size.
algebra-precalculus
Solving $2x + 1 = 11$: Why, when subtracting $1$, do I only do it to a single term on the left but, if dividing by $2$, I must divide both terms?
algebra-precalculus
Eliminating $\theta$ from $x=\cos\theta(2-\cos 2\theta)$ and $y=\sin\theta(2-\sin 2\theta)$
algebra-precalculus
trigonometry
Modelling the orchard yields with diminishing returns per tree
algebra-precalculus
optimization
quadratics
education
word-problem
Is there a cleaner proof of convergence for this almost-telescoping series
sequences-and-series
algebra-precalculus
convergence-divergence
alternative-proof
divergent-series
Can we subtract an inequality from the same inequality, and if so, does that mean $0<0$ is a true statement?
algebra-precalculus
real-numbers
Book recommendations from basic algebra to precalculus?
geometry
algebra-precalculus
reference-request
trigonometry
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