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Math 11 Chapter 6
Sequences and Series
Test - 7
1.
A sequence is a function whose domain is the set of _______
a) Integers
b) Natural nos
c) Rational nos
d) None
2.
The arrangement of number formed according to some definite rule is
called_______
a) Sequence
b) Function
c) Series
d) None
3.
The population of a town increases geometrically at the rate of 4% per
year. If the present population is 200,000 what will be the population
after 5 years
a) 2000,00 (1.04)
4
b) 200,000 (1.04)
c) 200,000 (1.04)
5
d) 200, 000 (1.04)
6
4.
If four number are in A.P & a is the first terms and dis common
difference then these numbers are_______
a) a, a + d , a+ 2d, a + 3d
b) a – b, a, a + d , a + 2d
c) a – 4d, a – 2d, a + 2d, a + 4d
d) a – 3d, a – d , a + d, a + 3d
5.
A Geometric series is divergent if
a) r # 1
b) r @ 1
c) r = 1
d) Both b & c
6.
For any two distinct negative real numbers a and b?
a) A @ G @ H
b) A # G # H
c) A # G @ H
d) A @ G # H
7.
If A, G & H are A.M, G.M & H.M b/w two numbers respectively then
a) A # G # H
b) A @ G # H
c) A # G @ H
d) A @ G @ H
8.
If a is the Ist term & r @ 1 is the common ratio of G.P then Sn = ……..
a) a (r
n
– 1) / r – 1
b) a(r – 1) / r + 1
c) ar
n
d) a( r
n
+ 1) / r – 1
9.
For an infinite series If |r| # | then S∞
a) a / 1-r
b) 1 / 1-r
c) a / r+1
d) None
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