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Math 11 Chapter 6
Sequences and Series
Test - 3
1.
1
2
+ 2
2
+ 3
2
+ ---- +n
2
= _________________.
a) (2n - 1)
3
b) (2n - 1)
2
c) (2n - 1)
-3
d) (2n - 1)
-4
2.
If a = 3, r = 2/3 then S∞ = _______
a) 1 / 9
b) 9
c) 8
d) 1 / 18
3.
The sequence -1, 1, -1, 1…..is _______
a) A.P
b) G.P
c) H.P
d) None
4.
6th term of 2,6, 18,----------- is:
a) None of the above.
b) 3/
Ö
2
c) 11/
Ö
2
d) 5/
Ö
2
5.
A sequence is said to be a function from set R to set N.
a) False
b) True
6.
Which of the following is an A. P?
a) 2, 4, 6, ……..
b) 1, 1/2, 1/3, ……….
c) 1, 5, 11, 18, ….
d) 1, 4, 9, …………..
7.
G. M b/w 2 & 8 is_______
a) 5
b) ± 3.2
c) - 4
d) ± 4
8.
Which term of the sequenced 3, 9, 15, …….. is 117
a) 19
b) 20
c) 21
d) 22
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