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New posts in rational-numbers
Compute the period of a decimal number a priori
number-theory
rational-numbers
Test of being a rational number for $(1-\frac13+\frac15-\frac17+\cdots)/(1+\frac14+\frac19+\frac1{16}+\cdots)$
sequences-and-series
algebra-precalculus
rational-numbers
rationality-testing
Can sum of a rational number and its reciprocal be an integer?
algebra-precalculus
number-theory
elementary-number-theory
rational-numbers
integers
Show that the curve $x^2+y^2-3=0$ has no rational points
elementary-number-theory
circles
rational-numbers
System of linear equations having a real solution has also a rational solution.
linear-algebra
abstract-algebra
matrices
rational-numbers
Why does Rudin say "the rational number system is inadequate as a field"?
analysis
rational-numbers
Is it possible to construct a strictly monotonic sequence of all rational numbers?
real-analysis
sequences-and-series
rational-numbers
Show that $X = \{ (x,y) \in\mathbb{R}^2\mid x \in \mathbb{Q}\text{ or }y \in \mathbb{Q}\}$ is path connected. [duplicate]
general-topology
connectedness
rational-numbers
Is $\{\tan(x) : x\in \mathbb{Q}\}$ a group under addition?
number-theory
trigonometry
rational-numbers
transcendental-numbers
Are rational points dense on every circle in the coordinate plane?
general-topology
coordinate-systems
rational-numbers
Cancel out $\frac{a\left(a-b^{\frac12}\right)}{a+a^{\frac12}\cdot b^{\frac14}}$
algebra-precalculus
exponentiation
rational-numbers
Cancel out $\dfrac{a\left(a-b^{\frac12}\right)}{a+a^{\frac12}\cdot b^{\frac14}}$ [duplicate]
algebra-precalculus
exponentiation
rational-numbers
Simplify $A=\frac{y^\frac12}{y^\frac12-2}+\frac{y^\frac12}{y^\frac12+2}-2$
algebra-precalculus
exponentiation
rational-numbers
GCD of rationals
elementary-number-theory
definition
rational-numbers
"Gaps" or "holes" in rational number system
real-analysis
analysis
rational-numbers
Is there a rational number between any two irrationals?
real-analysis
irrational-numbers
rational-numbers
Proof that every repeating decimal is rational
rational-numbers
number-systems
decimal-expansion
What is the average rational number?
real-analysis
sequences-and-series
rational-numbers
Is it possible to find an infinite set of points in the plane where the distance between any pair is rational?
geometry
number-theory
rational-numbers
Representing every positive rational number in the form of $(a^n+b^n)/(c^n+d^n)$
number-theory
rational-numbers
perfect-powers
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