RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 9. Continuity

Subject: Maths - Class 12th

Q. No. 30 of MCQ

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

30

Mark the correct alternative in the following:

The function is not defined for x = 2. In order to make f(x) continuous at x = 2, f(2) should be defined as


Formula:-


(i) A function f(x) is said to be continuous at a point x=a of its domain, iff



Given:-



Using factorization method



At point x=2




0=f(2)

Chapter Exercises

Exercise 9.1
Exercise 9.2
Very short answer
MCQ

More Exercise Questions

1

Mark the correct alternative in the following:

The function


2

Mark the correct alternative in the following:

If f(x) = |x – a| ϕ(x), where ϕ(x) is continuous function, then
3

Mark the correct alternative in the following:

If f(x) = |log10 x|, then at x = 1
4

Mark the correct alternative in the following:

If is continuous at x = 0, then k equals
5

Mark the correct alternative in the following:

If f(x) defined by then f(x) is continuous for all
6

Mark the correct alternative in the following:

If is continuous at x = π/2, then k =
7

Mark the correct alternative in the following:

If f(x) = (x + 1)cotx be continuous at x = 0, then f(0) is equal to
8

Mark the correct alternative in the following:

If and f(x) is continuous at x = 0, then the value of k is
9

Mark the correct alternative in the following:

The function


10

Mark the correct alternative in the following:

Let Then f(x) is continuous at x = 4 when
11

Mark the correct alternative in the following:

If the function is continuous at x = 0, then the value of k is
12

Mark the correct alternative in the following:

Let f(x) = |x| + |x – 1|, then
13

Mark the correct alternative in the following:

Let Then, f(x) is continuous on the set
14

Mark the correct alternative in the following:

If is continuous at x = 0, then
15

Mark the correct alternative in the following:

If is continuous at then
16

Mark the correct alternative in the following:

The value of f(0), so that the function becomes continuous for all x, given by
17

Mark the correct alternative in the following:

The function
18

Mark the correct alternative in the following:

The value of f(0), so that the function is continuous, is given by
19

Mark the correct alternative in the following:

The value f(0) so that the function is continuous everywhere, is given by
20

Mark the correct alternative in the following:

is continuous in the interval [–1, 1], then p is equal to
21

Mark the correct alternative in the following:

The function is continuous for 0 ≤ x < ∞, then the most suitable values of a and b are
22

Mark the correct alternative in the following:

If when then f(x) will be continuous function at x = π/2, where λ =
23

Mark the correct alternative in the following:

The value of a for which the function may be continuous at x = 0 is
24

Mark the correct alternative in the following:

The function f(x) = tan x is discontinuous on the set
25

Mark the correct alternative in the following:

The function is continuous at x = 0, then k =
26

Mark the correct alternative in the following:

If the function is continuous at each point of its domain, then the value of f(0) is
27

Mark the correct alternative in the following:

The value of b for which the function is continuous at every point of its domain, is
28

Mark the correct alternative in the following:

If then the set of points discontinuity of the function f(f(f(x))) is
29

Mark the correct alternative in the following:

Let The value which should be assigned to f(x) at so that it is continuous everywhere is
30

Mark the correct alternative in the following:

The function is not defined for x = 2. In order to make f(x) continuous at x = 2, f(2) should be defined as
31

Mark the correct alternative in the following:

If is continuous at x = 0, then a equals
32

Mark the correct alternative in the following:

If then the value of (a, b) for which f(x) cannot be continuous at x = 1, is
33

Mark the correct alternative in the following:

If the function f(x) defined by is continuous at x = 0, then k =
34

Mark the correct alternative in the following:

If then the value of a so that f(x) may be continuous at x = 0, is
35

Mark the correct alternative in the following:

If f(x) = then the value of the function at x = 0, so that the function is continuous at x = 0, is
36

Mark the correct alternative in the following:

The value of k which makes continuous at x = 0, is
37

Mark the correct alternative in the following:

The values of the constants a, b, and c for which the function



May be continuous at x = 0, are
38

Mark the correct alternative in the following:

The points of discontinuity of the function is (are)
39

Mark the correct alternative in the following:

If ..Then, f(x) is continuous at if
40

Mark the correct alternative in the following:

The points of discontinuity of the


function is (are)
41

Mark the correct alternative in the following:

The value of a for which the function is continuous at every point of its domain, is
42

Mark the correct alternative in the following:

If is


Continuous at then k is equal to

Students Store