Question

5. If R= - {(a, 2),( 5 - , ) b , (8, c d ),( ,- 1)} represents the identity function, find the
values of a b, , c and d .

Answer 1

QUESTION :
If R= {(a, -2),( -5 , b) , (8, c ) (d ,-1)} represents the identity function, find the values of a b, c and d .

•Domain : The set of all the first element of the ordered pairs of a relation is called the domain of the relation.

•Identity function : A function f is said to be an identity function if it maps each element of A into itself.

SOLUTION :
Given : R represents The Identity function.
The Identity function means that every element in the domain has same image.
a = -2 , b = -5 ,c = 8 , d = -1

HOPE THIS WILL HELP YOU

Answer 2

It is given that ,

R = { ( a , -2 ), ( -5 , b ) , ( 8 , c ) , ( d , -1 ) }

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Identity Function :

The function f : A -> A defined by f( x ) = x ,

i.e every element of A is image of itself

is called identity function.

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Therefore ,

a = -2 ,

b = -5 ,

c = 8 ,

d = -1

I hope this helps you.

: )