A) ( -1/2, √3/2) B) ( -1/2, √2/2) C) (-√3/2, 1/2) D) (-√2/2, 1/2)...
A) (-1/2, √3/2) B) (-1/2, √2/2) C) (-√3/2, 1/2) D) (-√2/2, 1/2)
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