sum of a as is given by the formula:
DESCRIPTION
Sum of a AS is given by the formula:. is always an arithmetic series. 3 rd term: 10 7 th term: 18 First term is 6. Sum of a GS is given by the formula:. Sum of a GS is given by the formula:. Sum of a GS is given by the formula:. Sum of a GS is given by the formula: if r < 1. GS - PowerPoint PPT PresentationTRANSCRIPT
1 510 S×2=S
2
[ ]1)d)-n(+a2
n=S
Sum of a AS is given by the formula:
3
∑ )r(f
is always an arithmetic series
4
∑5
0=r
5+4+3+2+1=r
5
∑11
10=r
2 12100=r
6
∑4
1=r
2 ...+36+16+4=r2
7
3rd term: 10
7th term: 18
First term is 6
8
1-r
)1-r(a=S
n
Sum of a GS is given by the formula:
9
r-
r- n
1
)1(a=S
Sum of a GS is given by the formula:
10
r-1
a=S
Sum of a GS is given by the formula:
11
r-1
a=S
Sum of a GS is given by the formula:
if r < 1
12
GS
3rd term: 26th term: 16
r = 2
13
GS
5th term: 29th term: 32
r = 2
14
GS
10th term: -5126th term: -321st term: 1
r = 2
15 ...+
3
)x2)(5)(6)(7(+
2
)x2)(6)(7(+
)x2)(7(+x2+1=)x2+1(
3
2
7
16
77 )2
x+1(2=)x+2(
17
NEVER
18
TRUE
19
SOMETIMES
20