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Answered on 24/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

Let A = {2, 3} and B = {3, 4}. Write all subsets of A x B?

Mamta Mund

Maths Tutor

A x B= { (2,3), (2,4), (3,3), (3,4) }.
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Answered on 23/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

Let R be the relation on Z defined by a R b if and only if a - b is an even integer. Find domain of R and range of R?

Shikha Yadav

Tutor

Domain would be set of all integer while range would be set of all even numbers.
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Answered on 22/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

Determine the domain and the range of the relation R, where R = {(x, cube of x) : x is a prime number less than 10}?

Shikha Yadav

Tutor

Domain: {2,3,5,7} while Range = {8,27,125,343}.
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Answered on 22/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

How many relations are possible from a set a of m elements to another set B of n elements? Why?

Shikha Yadav

Tutor

m*n. They are the Cartesian product of both the sets.
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Answered on 22/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

If A = {1, 2, 3}, B = {a, b}, find A x A?

Shikha Yadav

Tutor

A*A={(1,a), (1,b), (2,b),(3,a),(3,b)(2,a)}
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Answered on 26/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

If A = {1, 2, 3}, B = {a, b}, find A x B?

Ashwini

commerce

6
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Answered on 18/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

If A = {1, 2, 3}, B = {a, b}, find B x B?

Mamta Mund

Maths Tutor

BxB= {a,b} x{ a,b} = {(a,a),(a,b),(b.a),b,b)}
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Answered on 26/11/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

Find the range of the following functions: angle [cos (x)] - angle [sin (x)]?

Ashwini

commerce

-1 to 1
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Answered on 01/12/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

How many types of relations are there?

Kusuma S.

4- Reflexive, Symmetric, Transitive and Equivalence
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Answered on 01/12/2016 CBSE/Class 10/Mathematics Tuition/Class IX-X Tuition Relations

Define one to one relation?

Kusuma S.

It includes only two ends. In other words, Information is passed from one end to other end (Not more than one end).
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