Math 11 Chapter 6Sequences and SeriesTest - 2

Math 11 Chapter 6
Sequences and Series
Test - 2

1. G.M. between 1/-2i and 1/8i is___________.

a) A.M.
b) A.N.
c) A.C.
d) A.B.

2. A sequence is usually named with?

a) capitall letters
b) small letters
c) capitall and small letters
d) capitall and small letters and figures

3. The sum of Ist n terms of an A. series is ………

a) Sn = n/2[a – a n]
b) Sn
= n/2 (a + a n )
c) Sn = n/2 [2a+an]
d) Sn = a(rⁿ - 1) / r – 1

4. The A. M b/w a & b is …..

a) (a + b) / 2
b) 2ab / (a + b)
c) (a – b) / 2
d) ± √ ab

5. MCQ2 If a, =2, d=3 and the last term is 47 then the number of terms in the AP are:

a) 16
b) 13
c) 26
d) 10

6. The general term of the series 1³ +3³ +5³ + ______________.

a) 1/4
b) 1/2
c) 1/3
d) 2/3

7. Sequences are also called progressions.

a) Sum of infinite geometric series
b) Sum of arithmetic series.
c) Relationship between AM,GM &HM
d) If a_n = (-1)ⁿ (3n-3) then fourth term is
e) Geometric means

8. Sum of Ist seven multiples of 5 are:

a) 26
b) 13
c) 16,
d) 10

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