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1.Relation and Function
normal
The domain of $f(x) = [\sin x] \cos \left( {\frac{\pi }{{[x - 1]}}} \right)$ is (where $[.]$ denotes $G.I.F.$)
A
$R$
B
$R -\{1\}$
C
$R -(1, 2)$
D
$R -[1, 2)$
Solution
$[\mathrm{x}-1] \neq 0$
$[\mathrm{x}] \neq 1$
$x \notin 1$
$x \notin[1,2)$
Standard 12
Mathematics