Let \( f(x)=\log _{2}(|\sin x|+|\cos x|) \). The range of \( f(x) \) is....
Let \( f(x)=\log _{2}(|\sin x|+|\cos x|) \). The range of \( f(x) \) is
\( \mathrm{P} \)
(1) \( [-1,0] \)
(2) \( [0,1 / 2] \)
(3) \( [-1 / 2,0] \)
(4) \( [0,1] \)
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