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If x^2-4x+5-siny=0, yepsilon [0,2pi] the...

If `x^2-4x+5-siny=0, yepsilon [0,2pi]` then (A) `x=1,y=0` (B) `x=1,y=pi/2` (C) `x=2,y=0` (D) `x=2,y=pi/2`

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