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[" The expression "(tan(x-(pi)/(2))*cos(...

[" The expression "(tan(x-(pi)/(2))*cos((3 pi)/(2)+x)-sin^(3)((7 pi)/(2)-x))/(cos(x-(pi)/(2))*tan((3 pi)/(2)+x))" simplifies to- "],[[" (A) "(1+cos^(2)x)," (B) "sin^(2)x," (C) "-(1+cos^(2)x)," (D) "cos^(2)x]]

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