Functions Question 644
Question: If $ f:R\to R $ , then the range of the function $ f(x)=\frac{x^{2}}{x^{2}+1} $ is
[MP PET 1987]
Options:
A) $ {R^{-}} $
B) $ {R^{+}} $
C) R
D) $ R\times R $
Show Answer
Answer:
Correct Answer: B
Solution:
$ {R^{+}} $ {as y is always positive $ \forall x\in R} $ .