sulpcegu5e ppt 12_1
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Section 12.1
Sequences
OBJECTIVE 1
2
2 1n
na
n
1 2n
nb n
2 if is even
if is oddn
n nc
n n
1 1 1 1(a) , , , ,
2 4 8 16
(b) 5, 7, 9, 11,
(c) 1, 1, 1, 1,
(d) 3, 6, 11, 18, 27,
OBJECTIVE 2
Write down the first five terms of the following recursively defined sequence.
1 15, 2n nS S S
Write down the first five terms of the following recursively defined sequence.
OBJECTIVE 3
2
1 0
Write out each sum.
(a) (b) 11
n n
k k
kk
k
2 2 2 2 21 1 1 1 1
(a) 1 2 3 4 5
(b) 1 3 5 2 1n
OBJECTIVE 4
10 42
1 1
20 122 3
1 k=5
Find the sum of each sequence.
(a) (b) 5 1
(c) 5 2 (d) 3
k k
k
k k k
k k k
OBJECTIVE 5
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