cubic sequence formula Flashcards
1
Q
3rd diff
A
6a = 3rd diff
2
Q
2nd diff
A
12a + 2b = 2nd diff
3
Q
1st diff
A
7a + 3b + c = 1st diff
4
Q
nth term
A
a + b + c + d = nth term
3rd diff
6a = 3rd diff
2nd diff
12a + 2b = 2nd diff
1st diff
7a + 3b + c = 1st diff
nth term
a + b + c + d = nth term