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  • Please solve RD Sharma class 12 Chapter Functions exercise 2.1 question 6  maths textbook solution.

Please solve RD Sharma class 12 Chapter Functions exercise 2.1 question 6  maths textbook solution.

Answers (1)

       One

Given:

    F:A\rightarrow B is an injection such that the range off=\left \{ a \right \} 

Hint:

For an injection there will be exactly one image for each element.

Solution:

Here f=\left \{ a \right \}    

⇒ Since F is an injection, there will be exactly one image for each element of f.

⇒ So, the number of images of f is one.

\therefore Number of element in A is one.   

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