Question # 1

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

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512

192

48

96

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

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2n - 1

2n + 1

2n + 3

none

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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

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81

75

211

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

An infinite sequence has no:

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nth term

last term

sum

none

Reciprocals of the terms of the geometric sequence form:

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A.P

G.P

H.P

none

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

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3

1

2

4

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

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

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A.P

G.P

H.P

none of these

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

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A.P

G.P

H.P

none of these

Sequences are also called:

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Series

Progressions

Means

Convergence

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

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series

sequence

means

convergent

Two A.Ms. between 3 and 9 are:

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3. 6

5, 7

6, 12

3, 9

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

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50

250

100

500

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

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950

760

1230

875

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

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6

-6

none of the foregoing numbers

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

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24

41

32

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

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2n-1

2n+1

2n+3

none

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