The domain of the function \( f(x)=\sqrt{x^{12}-x^{9}+x^{4}-x+1} \) is
(a) \( (-1,1) \)
(b) \( (...
The domain of the function \( f(x)=\sqrt{x^{12}-x^{9}+x^{4}-x+1} \) is
(a) \( (-1,1) \)
(b) \( (-\infty,-1) \)
(c) \( (1, \infty) \)
(d) \( (-\infty, \infty) \)
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