A) \[[-1,0)\cup \{1\}\]
B) \[[-1,1]\]
C) \[[-1,1)\]
D) none of these
Correct Answer: A
Solution :
\[\because \] \[f(x)=\frac{{{\cos }^{-1}}x}{[x]}\] This function is defined if \[-1\le x\le 1\] But \[[x]\ne 0\] \[\Rightarrow \] \[x\notin [0,1]\] \[\therefore \]Domain of \[f(x)=[-1,0)\cup \{1\}.\]You need to login to perform this action.
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