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Math 11 Chapter 6
Sequences and Series
Test - 6
1.
The next term of the sequence 7,9,12,16, is __________.
a) 40/13
b) 1/13
c) 13
d) None of the above.
2.
The sum of infinite Geometric series 2, 2 , 1,-------- is _________.
a) 48
b) 56
c) 46
d) 44
3.
There exist ________ correspondence between the set of natural numbers and the terms of a sequence.
a) 1 - 2
b) 1 - 1
c) 2 - 1
d) 2 - 3
4.
H. M b/w a & b is……….
a) 2ab / a + b
b) (a + b) / 2
c) a
2
+b
2
/ 2
d) ±
√
ab
5.
A. M b/w 4 & 8 is……
a)
√
32
b) -
√
32
c) 6
d) 64 / 16
6.
H.M. between a and b is ___________.
a) 4 + 2
b) 4 - 2
c) 4 + 3
d) 4 - 3
7.
The sum of the series -1+1+3+…..+21 is_____
a) 110
b) 120
c) 130
d) 140
8.
If y= 2/3x + 4/9x
2
+ 8/27x
3
+ ------- then the interval of convergence is
a) r
1
b) a
1
r
1
2
c) a
1
r
1
d) a
1
2
r
1
2
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