Refer to JEE Mathematics Relation and Functions MCQs Set D provided below available for download in Pdf. The MCQ Questions for Full Syllabus Mathematics with answers are aligned as per the latest syllabus and exam pattern suggested by JEE (Main), NCERT and KVS. Multiple Choice Questions for Relation and Functions are an important part of exams for Full Syllabus Mathematics and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for JEE (Main) Full Syllabus Mathematics and also download more latest study material for all subjects
MCQ for Full Syllabus Mathematics Relation and Functions
Full Syllabus Mathematics students should refer to the following multiple-choice questions with answers for Relation and Functions in Full Syllabus.
Relation and Functions MCQ Questions Full Syllabus Mathematics with Answers
Question: Let S be a finite set containing n elements. Then the total number of binary operations on S is:
- a)
- b)
- c) nn
- d) n2
Answer:
Question: If a function f : [2, ∞) →B defined by f(x) = x2 – 4x + 5 is a bijection, then B is equal to:
- a) [1, ∞)
- b) [5, ∞)
- c) R
- d) [2, ∞)
Answer: [1, ∞)
Question:
- a) 2
- b) 0
- c) 1
- d) 1/2
Answer: 2
Question:
- a)
- b)
- c)
- d)
Answer:
Question: Let Φ(x)= ax-b/x-a, the range being all real numbers except a, and b = a2. Then its inverse is:
- a) (ax – b)/(x – a)
- b) (bx – a)/(x – a)
- c) (x – a)/(ax – b)
- d) (a – bx)/(1 – ax)
Answer: (ax – b)/(x – a)
Question:
- a) – 1
- b) 2
- c) 1
- d) 0
Answer: – 1
Question: The domain of f(x) = cos–1 (3x – 1) is :
- a) f (x)= 1-x/1+x
- b) f (x) = 3log x
- c) f (x) = 3x(x+1)
- d) none of these
Answer: f (x)= 1-x/1+x
Question: Let A = R – {3}, B = R – {1}. Let f : A → B be defined by f(x) =x-2/x+3 Then :
- a) f is bijective
- b) f is one-one but not onto
- c) f is onto but not one-one
- d) none of these
Answer: f is bijective
Question: The function f : R → R defined by f (x) = (x – 1) (x – 2) (x – 3) is
- a) onto but not one-one
- b) neither one-one nor onto
- c) one-one but not onto
- d) both one-one and onto
Answer: onto but not one-one
Question:
- a) [1, 2)
- b) [0, 2]
- c) [0, 2)
- d) [1, 2]
Answer: [1, 2)
Question:
- a) None of these
- b) 1
- c) – 1
- d) – 2
Answer: None of these
Question: Given the relation R = {(1, 2), (2, 3)} on the set A = {1, 2, 3}, the number of ordered pairs which when added to R make the R an equivalence relation is :
- a) 6
- b) None of these
- c) 5
- d) 7
Answer: 6
Question:
- a) – 1
- b) 2
- c) – 2
- d) 1
Answer: – 1
Question:
The function f : R → R defined by f (x) = sin x is :
- a) many one
- b) onto
- c) into
- d) one-one
Answer: many one
More Questions..........................
Question: If the number of elements in set A is m and number of element in set B is n then find number of relation defined from A to B
- a) 2mn
- b) 2m+n
- c) 2m–n
- d) 2m/n
Answer: 2mn
Question:
- a) {(9, 1), (6, 2), (3, 3)}
- b) {(8, 1), (6, 2), (3, 3)}
- c) {(9, 1), (4, 2), (3, 3)}
- d) {(7, 1), (6, 2), (2, 2)}
Answer: {(9, 1), (6, 2), (3, 3)}
Question: In the above question, find Domain of R
- a) {9, 6, 3}
- b) {6, 4, 3}
- c) {9, 5, 3}
- d) {8, 1, 3}
Answer: {9, 6, 3}
Question: In the above question, find Range of R
- a) {1, 2, 3}
- b) {9, 5, 3}
- c) {9, 6, 3}
- d) {6, 4, 3}
Answer: {1, 2, 3}
Question: Which of the following is a function?
- a) { (1,2), (2,2), (3,2), (4,2)}
- b) { (1,2), (3,3), (2,3), (1,4)}
- c) {(1,4), (2,5), (1,6) , (3,9)}
- d) {(2,1), (2,2), (2,3), (2,4)}
Answer: { (1,2), (2,2), (3,2), (4,2)}
Question:
- a) 1 – x
- b) x – 1
- c) x
- d) x + 1
Answer: 1 – x
Question:
- a) R – {–1,0,1}
- b) R – {0,1}
- c) R
- d) None of these
Answer: R – {–1,0,1}
Question:
- a) [–1,1]
- b) {–1,1}
- c) {0,1}
- d) {–1,0,1}
Answer: [–1,1]
Question:
- a)
- b)
- c)
- d) x + 3
Answer:
Question: Function f (x) = x–2 + x–3 is-
- a) a rational function
- b) an inverse function
- c) None of these
- d) an irrational function
Answer: a rational function
Question: The period of | sin 2x | is-
- a)
- b)
- c)
- d)
Answer:
Question:
- a) x
- b) –x
- c) 1/x
- d) –1/x
Answer: x
Question: If f(x) = 2|x – 2| – 3|x – 3|, then the value of f(x) when 2 < x < 3 is
- a) 5x – 13
- b) 5 – x
- c) x – 5
- d) None of these
Answer: 5x – 13
Question:
- a)
- b)
- c) R
- d) No value of x
Answer:
Question:
- a) [–2,2] – (–1,1)
- b) [1,2]
- c) [–1,2] – {0}
- d) [–2,2] – {0}
Answer: [–2,2] – (–1,1)
Question:
- a) –7
- b) 7
- c) –14
- d) 14
Answer: –7
Question: The relation R = { (1, 1), (2, 2), (3, 3)} on the set {1, 2, 3} is :
- a) reflexive only
- b) an equivalence relation
- c) transitive only
- d) symmetric only
Answer: reflexive only
Question:
- a) one-one and onto
- b) one-one but not onto
- c) onto but not one-one
- d) neither one-one nor onto
Answer: one-one and onto
Question:
- a) one-one but not onto
- b) onto but not one-one
- c) neither one-one nor onto
- d) one-one and onto
Answer: one-one but not onto
Question:
- a) one-one & onto
- b) neither one-one nor onto
- c) one-one but not onto
- d) onto but not one-one
Answer: one-one & onto
Question: R is a relation from {11, 12, 13} to {8, 10, 12} defined by y = x – 3. Then R–1 is
- a) {(8, 11), (10, 13)}
- b) {(10, 13), (8, 11)}
- c) {(11, 18), (13, 10)}
- d) None of these
Answer: {(8, 11), (10, 13)}
Question:
- a) 1 and 2 are correct
- b) 1 and 3 are correct
- c) 1, 2 and 3 are correct
- d) 2 and 4 are correct
Answer: 1 and 2 are correct
Question:
- a)
- b)
- c)
- d)
Answer:
Question:
- a)
- b)
- c)
- d) None of these
Answer:
Question: If f : [0, 2]→ [0, 2] is a bijective function defined by f (x) = ax2 + bx + c, where a, b, c are non-zero real numbers then f (2) is equal to –
- a) 0
- b) 2
- c) cannot be determined
- d)
Answer: 0
Question: If f : [0, 2]→ [0, 2] is a bijective function defined by f (x) = ax2 + bx + c, where a, b, c are non-zero real numbers then Which of the following is one of the roots f (x) = 0 ?
- a) 1/a
- b) 1/b
- c) 1/c
- d) None of these
Answer: 1/a
Question: If f : [0, 2]→ [0, 2] is a bijective function defined by f (x) = ax2 + bx + c, where a, b, c are non-zero real numbers then
Which of the following is not a value of a ?
- a) 1
- b) 1/2
- c) –1/4
- d) – 1/2
Answer: 1
Question:
- a) Statement -1 is True, Statement-2 is False
- b) Statement -1 is False, Statement-2 is True.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a explanation for Statement-1.
Answer: Statement -1 is True, Statement-2 is False
Question: Let for real numbers x and y we define the relation R such that
Statement-1 : The relation R is an equivalence relation.
Statement-2 : A relation R is an equivalence relation if it is reflexive, transitive and symmetric.
- a) Statement -1 is False, Statement-2 is True.
- b) Statement -1 is True, Statement-2 is False.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement -1 is False, Statement-2 is True.
Question: Statement-1 : Every relation which is symmetric and transitive is also reflexive.
- a) Statement -1 is False, Statement-2 is True.
- b) Statement -1 is True, Statement-2 is False.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement -1 is False, Statement-2 is True.
Question:
- a) None of these
- b) R – {1}
- c) [0,1]
- d) Both
Answer: None of these
Question:
- a) 0
- b) 1/2
- c) –1
- d) –2
Answer: 0
Question:
- a)
- b)
- c)
- d) None of these
Answer:
Question:
- a) 2f(x)
- b) – f(x)
- c) f (x)
- d) f (–x)
Answer: 2f(x)
Question: Find the range of f (x) = x– [x]
- a) [0, 1)
- b) (0, 1)
- c) [0, 1]
- d) [–1, 0)
Answer: [0, 1)
Question: Range of f (x) = 3 + x – [x+2] will be
- a) [1, 2)
- b) [0, 2)
- c) [0, 1]
- d) [–1, 0)
Answer: [1, 2)
Question: If X = {x1, x2, x3}, Y = (x1, x2, x3,x4,x5} and R1, is a relation from X to Y, then which of the followings are reflexive relation? (1) R1 : {(x1, x1), (x2, x2), (x3, x3)} (2) R1 : {(x1, x1), (x2, x2)} (3) R1 : {(x1, x1), (x2, x2),(x3, x3),(x1, x3),(x2, x4)} (4) R1 : {(x1, x1), (x2, x2),(x3, x3),(x4, x4)}
- a) 1 and 3 are correct
- b) 1 and 2 are correct
- c) 1, 2 and 3 are correct
- d) 2 and 4 are correct
Answer: 1 and 3 are correct
Question: If X = {a, b, c} and Y = {a, b, c, d, e, f} then find which of the following relation are symmetric relation?
(1) R1 : { } i.e. void relation
(2) R3 : {(a, b), (b, a)(a, c)(c, a)(a, a)}
(3) Every null relation
(4) R2 : {(a, b)}
- a) 1, 2 and 3 are correct
- b) 2 and 4 are correct
- c) 1 and 2 are correct
- d) 1 and 3 are correct
Answer: 1, 2 and 3 are correct
Question: If X = {a, b, c} and Y = {a, b, c, d, e} then which of thefollowing are transitive relation.
(1) R1 = { }
(2) R2 = {(a, a)}
(3) R3 = {(a, a).(c, d)}
(4) R4 = {(a, b), (b, c)(a, c)}
- a) 1, 2 and 3 are correct
- b) 2 and 4 are correct
- c) 1 and 2 are correct
- d) 1 and 3 are correct
Answer: 1, 2 and 3 are correct
Question:
Domains of R and R–1 are –
- a) {2, 4, 6, 8}, {4, 3, 2, 1}
- b) {4, 3, 2, 1}, {2, 4, 6, 8},
- c) {4, 6, 8, 10}, {4, 3, 2, 1}
- d) None of these
Answer: {2, 4, 6, 8}, {4, 3, 2, 1}
Question:
Range of R is –
- a) {4, 3, 2, 1}
- b) None of these
- c) {2, 4, 6, 8}
- d) {4, 6, 8, 10}
Answer: {4, 3, 2, 1}
Question:
Range of R–1 is –
- a) {2, 4, 6, 8}
- b) {4, 6, 8, 10}
- c) {4, 3, 2, 1}
- d) None of these
Answer: {2, 4, 6, 8}
Question:
- a) Statement -1 is True, Statement-2 is False
- b) Statement -1 is False, Statement-2 is True.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement -1 is True, Statement-2 is False
Question:
- a) Statement -1 is False, Statement-2 is True.
- b) Statement -1 is True, Statement-2 is False.
- c) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- d) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
Answer: Statement -1 is False, Statement-2 is True.
Question:
- a) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
- b) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
- c) Statement -1 is False, Statement-2 is True
- d) Statement -1 is True, Statement-2 is False.
Answer: Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.
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MCQs for Relation and Functions Mathematics Full Syllabus
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