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[" The number of points from where a pair of perpendicular tangents can be drawn to the hyperto "],[x^(2)" sece "^(2)alpha-y^(2)csc^(2)alpha=1,alpha in(0,pi/4)," is: "],[[" (A) "0," (B) "1," (B) "1," (C) "2," (D) infinite "]]

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