RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 3. Functions

Subject: Maths - Class 11th

Q. No. 21 of Exercise 3F

Listen NCERT Audio Books to boost your productivity and retention power by 2X.


Write the domain and the range of the function, f(x) = –|x|.

(i) Domain

|x | is defined for all real values.

Hence -|x| is also defined for all real values.

The domain is R.

(ii) Range

Range for |x| is [0, ∞)

Therefore, range for - |x| is ( -∞,0].

Chapter Exercises

More Exercise Questions