Question # 1

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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

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series

sequence

means

convergent

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

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32

64

128

16

Which number cannot be a term of a geometric sequence ?

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0

1

-1

r

Sequences are also called:

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Series

Progressions

Means

Convergence

A sequence of numbers whose reciprocal form an arithmetic sequence, is known as:

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arithmetic sequence

geometricsequence

harmonicsequence

none of these

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

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6

-6

none of the foregoing numbers

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

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A.P

G.P

H.P

none of these

What is called the difference between two consecutive terms of an arithmetic sequence ?

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common ratio

common difference

common element

none of these

A.M between x - 3 & x + 5 is __________:

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x + 1

x - 1

2x + 2

none

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

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

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A.P

G.P

H.P

none

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

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50

250

100

500

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

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divergent

convergent

oscillatory

none of these

The next term of the sequence 1, 6, 20, 56, ........ is:

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112

144

212

none

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

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24

41

32

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

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A.P

G.P

H.P

none of these

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

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5

3

7

9

Zero cannot be a term of:

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A.P and G.P

G.P and H.P

A.P and H.P

only H.P

If a_n = (n + 1) a_n-1, a₁ = 1, second term of the sequence is:

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3

1

2

4

If there are six G.Ms between 3 and 284 then G₄ =

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24

48

12

6

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