Is the sum of reciprocals of all products from $2$ to $n-1$ always $0.5n-1$?

Probability of number of people who know a rumor

Golden Ratio Conjecture in three simple Geogebra shapes--circle, triangle, and square.

Finding a basis for the set of polynomials where f(1)=f(-1)=0

Absolute value graph sketching: $||x-1|-1|$

Is the set of periodic functions from $\mathbb{R}$ to $\mathbb{R}$ a subspace of $\mathbb{R}^\mathbb{R}$?

Solving a 6th degree polynomial equation

Number of points of accumulation of a sequence

Is there a simpler function with this shape?

Can you use both sides of an equation to prove equality?

Kunen exercise III.8.21

Number of ways of visiting N places

How to show that a continous function $f:\mathbb{R}^m \to \mathbb{R}$ has a maximum?

Related