amc

Question 1

vieta’s formulas, pythagorean triples, nth term/sum of terms/number of terms in arithmetic sequence, nth term/sum of terms/number of terms in geometric sequence, sum of squares and cubes, list of primes, sophie germain’s identity, chicken mcnugget theorem, heron’s formula, inradius formula, area of equilateral triangle, power of a point, point to line formula, point slope form, shoelace theorem, picks theorem, volume formulas, number of ways to rearrange letters in a word, factorial up to 10, circle equation, formula for perfect cubes

Question 2

circle equation

Answer 2

(x – h)^2 + (y – k)^2 = r^2, (h,k) is the center, r is the radius