={1,5,7} then (A\B)∪ (B\A)=……… A. ∅ B.{1,3,5} C. {2,3,4,6,8} D.{1,2,3,4,5,6,7,8} E.It is impossible to determine 29.Let S={1,2,3,4,5} be the universal set. If A∩B´={1,2} and B´={1,2,3}, then A∪B=……. A.

4 E. 5 The scientific notation 3.5 ×103 multiplied by 3 is A. 1.05 ×102 B.1.05×1010 C. 1.05×103 D.1.05×109 E. 1.05×104 The scientific notation 8.2×10-4 + 5.4×10-4=……… A.1.35×10-5 B. 1.36×10-4 C.1.36×10-3

) D.(0,3) E.(0,4) Which of the following points, lies on the line 2x+y=6? (1,4) 2.(0,6) 3.(2,0) A.1 only B. 2only C. 1and3 only D. 2and3 only E. 2 and 3 only PQRS is a rectangle with the points P(-1,0)