11th Class Math MCQS Chapter 6

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

Onto function

Series

Identity function

Sequence

?ⁿ_k=1k =________

kⁿ

k(k+1)/2

n(n+1)/2

k

If 1/K, 1/2k+1 and 1/4k-1 are in H.P then the value of K is

0

1

2

3

The common difference of geometric sequence is denoted by

r

d

n

a₁

If the members of sequence are real then the sequence is called

Arithmetic sequence

Geometric sequence

Harmonic sequence

Real sequence