Question

if {a,b} , (7, b) represents an identity function, then the value of a and b are respectiely
​

Answer 1

Step-by-step explanation:

Correct option is

B

11

Since we know that in constant function image of every element is same.

Here, image of 7 is 11, so image of any element will be 11.

Therefore, image of 5 is too 11.

Hence, a=11