N is the number of sides of the regular polygon inscribed in the circle. As you increase N, you'll notice the area of the polygon approaches the area of the circle.
Reciprocal Function f(x) = 1/x⁴
Integral property example
Distance Time Graphs and Pythagorean Theorem
Задание 1 С.А.
Sampling Distribution of a Mean (n=10)
NS1-02-P5a2-XT2 (Quotient Rule)