Question

$\mathrm{If}f:A\to B\mathrm{is}a\mathrm{constant}\mathrm{function},\mathrm{then}\mathrm{range}\mathrm{of}f\mathrm{will}\mathrm{have}\mathrm{\_\_\_}\mathrm{elements}$

• A. 1
• B. Infinite
• C. 0
• D. 2

Answer 1

The correct option is A 1

Given f is a constant function.
Let f(x)=c
⇒ range of f is {c}
⇒ Range of f will contain only
one element.
∴n(A)=1.