Question # 1

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

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2n - 1

2n + 1

2n + 3

none

Which number cannot be a term of a geometric sequence ?

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0

1

-1

r

If S is the H.M between 2 and b then b = :

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-10

10

7

5

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

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arithmetic sequence

geometricsequence

sequence

none of these

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

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arithmetic sequence

geometricsequence

harmonicsequence

none of these

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

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x + 1

x - 1

2x + 2

none

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

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4 or -4

4i or -4i

2 or -2

none

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

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A.P

G.P

H.P

none of these

What is the next term in the sequence 10, 7, 4, 1...........?

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2

-2

-3

none of these

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

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24

48

12

6

If a_n-3 = 2n - 5 then a_n =

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2n-1

2n+1

2n+3

none

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

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32

64

128

16

A geometric series is convergent only if:

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| r | > 1

| r | < 1

| r | = 1

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

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

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81

75

211

none

A.M between 1 + x - x² and 1 + x + x² is:

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1 + x²

1 + x

2

none

An infinite sequence has no:

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nth term

last term

sum

none

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

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divergent

convergent

oscillatory

none of these

What is the general term of the sequence 2, 4, 6, 8, ........... ?

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2n

n + 1

2n²

none of these

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

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50

250

100

500

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

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Mathematics Fsc Part 1 Chapter 6 Online Test MCQs With Answers

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