Random Info Idk Where To Add Flashcards
1
Q
HM, AM and GM relationship
A
GM² = HM × AM
2
Q
What is HM?
A
Harmonic mean
= n
—————————
1/x1 + 1/x2 +…… 1/xn
3
Q
What is GM?
A
Geometric mean:
nth root of product of n numbers
√(1.2.3.4….n)
4
Q
Equation of circle
A
(x-h)² + (y-k)² = r²
- (h,k) centre point
- r: radius
5
Q
No: of diagonals of polygon of n sides
A
n(n-3)/2
