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New posts in algebra-precalculus
Why do we automatically assume that when we divide a polynomial by a second degree polynomial the remainder is linear?
algebra-precalculus
polynomials
quadratics
Proof with 3D vectors
algebra-precalculus
vectors
Number of equivalence relations on a set
combinatorics
algebra-precalculus
elementary-set-theory
discrete-mathematics
If you take the reciprocal in an inequality, would it change the $>/< $ signs?
algebra-precalculus
inequality
fractions
Simplifying $\sqrt{5+2\sqrt{5+2\sqrt{5+2\sqrt {5 +\cdots}}}}$
algebra-precalculus
What are better approximations to $\pi$ as algebraic though irrational number?
algebra-precalculus
approximation
pi
Process to show that $\sqrt 2+\sqrt[3] 3$ is irrational
algebra-precalculus
irrational-numbers
Is Vieta the only way out?
algebra-precalculus
polynomials
roots
Counting number of students who have failed in all four subjects
algebra-precalculus
Is "ln" (natural log) and "log" the same thing if used in this answer?
algebra-precalculus
logarithms
exponential-function
Prove a number is composite
algebra-precalculus
elementary-number-theory
prime-numbers
Proving that $\frac{n+1}{2n+3}$ and $\frac{3n-5}{4n-7}$ are irreducible for all $n$
algebra-precalculus
divisibility
fractions
Show that the numerator of $1+\frac12 +\frac13 +\cdots +\frac1{96}$ is divisible by $97$
algebra-precalculus
elementary-number-theory
summation
divisibility
rational-numbers
If $2^x=0$, find $x$.
algebra-precalculus
How do I find an integer value for which an expression is non-prime?
algebra-precalculus
elementary-number-theory
prime-numbers
How to solve the inequality $x^2>10$ using square roots?
algebra-precalculus
inequality
radicals
Is $1111111111111111111111111111111111111111111111111111111$ ($55$ $1$'s) a composite number?
sequences-and-series
algebra-precalculus
geometric-series
geometric-progressions
repunit-numbers
Proving that $\frac{1}{\sqrt{1}} + \frac{1}{\sqrt{2}} + \cdots + \frac{1}{\sqrt{100}} < 20$
algebra-precalculus
inequality
Given $P(x)=x^{4}-4x^{3}+12x^{2}-24x+24,$ then $P(x)=|P(x)|$ for all real $x$
algebra-precalculus
inequality
polynomials
absolute-value
sum-of-squares-method
Meaning of $\frac{x-y}{y}$ versus $\frac{x}{y}-1$
algebra-precalculus
arithmetic
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