Core 2 Flashcards
0
Q
GPs
Sum to infinity
A
a
___
1 - r
1
Q
GPs
Sum of the first terms
A
a ( 1 - rⁿ )
_______
1 - r
2
Q
APs
A
Un = a + (n - 1)d
3
Q
APs
Sum of the first terms
A
n
_ ( 2a + (n - 1)d )
2
4
Q
BINOMIAL EXPANSION
A
(ⁿC₀) (a)ⁿ (b)⁰
(ⁿC₁) (a)ⁿ-¹ (b)¹
(ⁿC₂) (a)ⁿ-² (b)²
