Question # 1

Which number cannot be a term of a geometric sequence ?

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0

1

-1

r

What is the general term of the geometric sequence -1, 1, -1, 1 ....... ?

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(-1)ⁿ

(1)ⁿ

(-1)^n-1

none of these

The series 2 + 2 + 2 ..... is:

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divergent

convergent

oscillatory

none of these

G.M between -2i and 8i is:

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4 or -4

4i or -4i

2 or -2

none

Sum of integral multiples of there between 4 and 22 is:

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81

75

211

none

Reciprocals of the terms of the geometric sequence form:

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A.P

G.P

H.P

none

7th term of G.P 3, 6, 12 ..... is:

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512

192

48

96

The series 3 + 33 + 333 + ...... is:

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A.P

G.P

H.P

none of these

A function whose domain is the set of natural numbers is called the:

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series

sequence

means

convergent

What is called the arrangement of numbers formed according to some definite rule ?

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arithmetic sequence

geometricsequence

sequence

none of these

Sum of all positive integral multiples of 3 less than 100 is:

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950

760

1230

875

The next term of the sequence-1, 2, 12, 40, .........is:

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112

212

144

none

The product of three G.Ms between 1 and 16 is:

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32

64

128

16

The reciprocal of the terms of A.P. form:

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A.P

G.P

H.P

none of these

The sum of 10 A.Ms between 3 and 47 is:

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50

250

100

500

If a_n-1 = 2n - 3 then a_n+1 =

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2n - 1

2n + 1

2n + 3

none

Fifth term of the sequence 2, 6, 11, 17.

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24

41

32

In an A.P.a₃ = 12 and a₇ = 32 then d = :

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5

3

7

9

What is the common difference of the sequence 11, 5, -1, ......... ?

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6

-6

none of the foregoing numbers

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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