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[" If "2sin(A)/(2)=sqrt(1+sin A)+sqrt(1-...

[" If "2sin(A)/(2)=sqrt(1+sin A)+sqrt(1-sin A)," then "(A)/(2)" lies between "],[" (a) "2n pi+(pi)/(4)" and "2n pi+(3 pi)/(4),n in Z],[" (b) "2n pi-(pi)/(4)" and "2n pi+(pi)/(4),n in Z],[" (c) "2n pi-(3 pi)/(4)" and "2n pi-(pi)/(4),n in Z],[" (d) "-oo" and "+oo]

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