CBSE Class 12 Relations and Functions Multiple Choice Questions with Answers. MCQ Questions Class 12 Relations and Functions with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT MCQ questions Class 12 Relations and Functions with Answers to know their preparation level.
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MCQ Questions Class 12 Relations and Functions with Answers - Set - 2
Question 1:
If the function f(x) = x³ + ex/2 and g (x) = fn(x), then the value of g'(1) is
(a) 1
(b) 2
(c) 3
(d) 4
Correct Answer – (B)
Question 3:
A relation R in human being defined as, R = {{a, b) : a, b ∈ human beings : a loves A} is-
(a) reflexive
(b) symmetric and transitive
(c) equivalence
(d) None of these
Correct Answer – (C)
Question 4:
Let function R → R is defined as f(x) = 2x³ – 1, then ‘f’ is
(a) 2x³ + 1
(b) (2x)³ + 1
(c) (1 – 2x)³
(d) ((1+x)/2)⅓
Correct Answer – (D)
Question 5:
Let A = {1, 2, 3, 4,…. n} How many bijective function f : A → B can be defined?
(a) (½)n
(b) 
(c) 
(d) n
Correct Answer – (C)
MCQ Questions Class 12 Relations and Functions With Answers
Question 6:
The domain of sin-1 (log (x/3)] is. .
(a) [1, 9]
(b) [-1, 9]
(c) [-9, 1]
(d) [-9, -1]
Correct Answer – (A)
Question 7:
If f(x) + 2f (1 – x) = x² + 2 ∀ x ∈ R, then f(x) =
(a) x² – 2
(b) 1
(c) ⅓(x – 2)²
(d) None of these
Correct Answer – (C)
Question 8:
Let the functioin ‘f’ be defined by f (x) = 5x² + 2 ∀ x ∈ R, then ‘f’ is
(a) onto function
(b) one-one, onto function
(c) one-one, into function
(d) many-one into function
Correct Answer – (D)
Question 9:
If A = (1, 2, 3}, B = {6, 7, 8} is a function such that f(x) = x + 5 then what type of a function is f?
(a) Many-one onto
(b) Constant function
(c) one-one onto
(d) into
Correct Answer – (C)
Question 10:
Let A = {1, 2}, how many binary operations can be defined on this set?
(a) 8
(b) 10
(c) 16
(d) 20
Correct Answer – (C)
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