If f(x)= array ll |x|, & x 1 2-x, & x>1 array . , then f ( f (x)) is equal to
Mathematics · JEE Advanced · NTA Exams — Sets, Relations and Functions
If \[f(x)=\left\{\begin{array}{ll}
|x|, & x \leq 1 \\
2-x, & x>1
\end{array}\right.\], then f ( f (x)) is equal to
- \[\left\{\begin{array}{lc} 2-|x|, & x<-1 \\ |x|, & -1 \leq x \leq 1 \\ |2-x|, & x>1 \end{array}\right.\]
- \[\left\{\begin{array}{lc} |x|, & x<-1 \\ 2-|x|, & -1 \leq x \leq 1 \\ |2-x|, & x>1 \end{array}\right.\]
- \[\left\{\begin{array}{lc} |2-x|, & x<-1 \\ |x|, & -1 \leq x \leq 1 \\ 2-|x|, & x>1 \end{array}\right.\]
- none of these
Answer
(A) array lc 2-|x|, & x 1 array .
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