Math Chapter Wise Tangent, Normal, Increasing, Decreasing And Maxima/Minima Of A Function Of One Variable English MCQ PGT 2011 Q.The minimum value of (x – a) (x – b) is: Aab B()2 a b 4 − C0 D()2 a b 4 − Show answer Correct answer: ()2 a b 4 −