
Relation & Function Quiz
Authored by Mahendra Keswani
Mathematics
12th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Let f:R→R be the function defined by f(x)=3x. Then f:
मान लीजिए कि f(x) = 3x द्वारा परिभाषित फलन f : R → R है। तब f:
One-one and onto
(एकैकी और आच्छादक है)
Many-one onto
(बहु-एक आच्छादक है)
One-one but not onto
(एकैकी है परन्तु आच्छादक नहीं है)
Neither one-one nor onto.
(न तो एकैकी है और न ही आच्छादक है।)
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The modulus function f:R→R⁺ is given by f(x)=|x| then it is:
मापांक फलन f : R → R⁺ को f (x) = | x | के द्वारा दिया गया है, तब यह होगा :
One-one
(एकैकी)
Many-one
(बहु-एकैकी)
into
(अच्छादक नहीं है)
None of these.
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The modulus function f:R→R given by f(x)=|x| is:
f(x) =|x| द्वारा प्रदत्त मापांक फलन f : R → R है :
One-one and onto
(एकैकी और आच्छादक)
Many-one onto
(बहु-एकैकी और आच्छादक)
One-one but not onto
(एकैकी, किन्तु आच्छादक नहीं)
Neither one-one nor onto.
(न तो एकैकी और न ही आच्छादक।)
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Let [x] denote the greatest integer that is less than or equal to x. Then the function f:R→R defined by f(x)=[x] will be:
माना [x] उस महत्तम पूर्णांक को प्रकट करता है, जो x से कम या उसके बराबर है। तब f (x) = [x] द्वारा परिभाषित फलन f : R→R होगा :
One-one and onto
(एकैकी और आच्छादक)
One-one but not onto
(एकैकी किन्तु आच्छादक नहीं)
Onto but not one-one
(आच्छादक किन्तु एकैकी नहीं)
Neither one-one nor onto.
( तो एकैकी और न ही आच्छादक।)
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
x
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
If two finite sets A and B have elements 4 and 2 respectively, then the total number of relations from A to B will be:
यदि दो परिमित समुच्चयों A तथा B में अवयव क्रमशः 4 तथा 2 हों, तो A से B में कुल सम्बन्धों की संख्या होगी :
16
6
64
256
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A relation R on the set {1,2,3,4} is defined as follows: R={(1,2),(2,2),(1,1),(4,4),(1,3),(3,3),(3,2)} This relation R:
समुच्चय {1, 2, 3, 4} में सम्बन्ध R निम्न प्रकार परिभाषित है: R = {(1, 2), (2, 2), (1, 1), (4, 4), (1, 3), (3, 3), (3, 2)} यह सम्बन्ध R :
is reflexive and symmetric, but not transitive
(स्वतुल्य तथा सममित है, किन्तु संक्रामक नहीं)
is reflexive and transitive, but not symmetric
(स्वतुल्य तथा संक्रामक है, किन्तु सममित नहीं)
is symmetric and transitive, but not reflexive
(सममित तथा संक्रामक है, किन्तु स्वतुल्य नहीं)
is an equivalence relation.
(एक तुल्यता सम्बन्ध है।)
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