Math Chapter Wise Linear Algebra English MCQ JDD-75-PGT TIER II-X-15 28.06.2015 Q.Which of the following define a metric on R? A() 2 2 d x, y x y = − B() d x, y x 2y = − C() x y d x, y 1 x y − = + − Dnone of these Show answer Correct answer: () x y d x, y 1 x y − = + −