ECAT Mathematics Chapter 8 MCQ Test With Answer for Mathematics chapter 8 (Sequences and Series)

ECAT Computer Science Mathematics Ch. 8 Test
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Online MCQ`s Test For Chapter 8 "ECAT Mathematics Chapter 8 Sequences and Series Online Test"

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ECAT Mathematics Chapter 8 Sequences and Series Online Test

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Question # 1

Sum of n terms of a geometric series if | r | < 1 is

Question # 2

5th term of a G.P. is 2, then the product of first 9 terms is

Question # 3

The third term of a G.P. is the square of first term. If the second term is 8, then the 6th term is

Question # 4

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Question # 5

The difference of two consecutive terms of an A.P is called the

Question # 6

The series obtained by adding the terms of an arithmetic sequence is called the

Question # 7

Every term of a G.P. is positive and also every term is the sum of two preceding terms. Then the common ratio of the G.P. is

Question # 8

Let the sequence 1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, ..... where n consecutive terms have the value n, then 1025th term is

Question # 9

If all members of a sequence are real numbers then it is called

Question # 10

A sequence whose reciprocal is an A.P is called

Question # 11

If #n = (n-5)2 + 5, then find #3 x #4.

Question # 12

A Geometric Series is divergent only if

Question # 13

If A, G, H are the arithmetic, geometric and harmonic means between a and b respectively then A, G, H are in

Question # 14

The general term of the A.P. is

Question # 15

The sum of first 60 natural numbers is

Question # 16

The numbers of G1, G2, G3...... Gnare called n geometric means between a and b is a, G1, G2,G3, ... Gn, b are in

Question # 17

If a1, r are first term and the common ratio respectively then the sum of an infinite geometric series is

Question # 18

The sum of an infinite geometric series exist if

Question # 19

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Question # 20

The third term of the sequence an= (-1)n-1(n-7) is ______

Question # 21

Arithmetic mean between x - 3 and x + 5 is

Question # 22

The sum of first twenty odd integers in A.P is

Question # 23

An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is

Question # 24

If a1and r are the first term and the common ratio respectively then (n + 1)th term of the G.P. is

Question # 25

If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then xy-z. yz-x. zx-yeqals

Question # 26

The 6th term of an arithmetic sequence whose first term is 3 and common difference in zero is

Question # 27

The consecutive terms of a progressions are 30, 24, 20. The next term of the progression is

Question # 28

A sequence is a functions whose domain is a subset of the set of

Question # 29

The sides of a right angled triangle are in A.P The ratio of sides is

Question # 30

If p, q, r and in A.P., a is G.M. between p and q and b is G.M. between q and r, then a2, q2, b2are in

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