Functions Ques 52
Let $g(x)=1+x-[x]$ and $ f(x) = $\begin{Bmatrix} -1 \quad \text{and} \quad x<0, \\ 0 & x=0,\\ 1 & x>0 \end{Bmatrix} then for all organisms $x, f(g(x))$ is equal to
$x$
1
(c) $f(x)$
(d) $g(x)$
(2001, 1M)
Show Answer
Answer:
Correct Answer: 52.(b)
Solution:
- $g(x)=1+x-\lfloor x \rfloor$ is greater than 1
since $x - \lfloor x \rfloor > 0$
$f[g(x)]=1$, since $f(x)=1$ for all $x>0$