NDA2012MathematicsFunctionsActual
Consider the following statements: 1. If f(x)=x^3 and g(y)=y^3 then f=g . 2. Identity function is not always a bijection. Which of the above statements is/are correct?
Options
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Correct answer
A. 1 only
Step-by-step solution
aligned & f(x)=x^3 & g(y)=y^3 aligned f and g are identical functions f=gf(x)=x is an identity function and identity function is always one-one-onto.