g9matn

The element(s) of A ={ (x,y)\ x+y=8 where x and y are positive integers and x≥ y} is
1. (1,3) 2.(4,4) 3. (5,3)
A.1 only B. 2 only C.3 only D.1 and 2 only E.2 and 3 only
3.Given that S= {0,1,2,3,4} is the universal set and A={ x\ x3 – 9x =0 }.Then A=……..
A.{ -3 , 0, 3 } B. { -3 , 0 } C.{ 0 , 3 } D.{ -3 , -3 } E.{0,9}
4.The interval { x\ -2≤ x < 3 }is denoted by
A.( -2 , 3 ) B. [ -2 , 3 ] C.[ -2 , 3 ) D.( -2 , 3 ] E. None of these

1. The graph on the number line is denoted by
   2 3
   A.(-2,3) B.[-2,3) C. (-2,3] D.[-2,3] E. Non of these
   6.If A={x\x≥4,xϵR} and B={x\x<8 ,x∈R} then A∩B is
   A. {x\8≥x≥4} B. {x\8≥x>4} C. {x\8≤x≤4}
   D. {x\8≤x<4} E.Non of these
   7.If P=[2,7) and Q=(3,7], then P∩Q =………..
   A.(3,7] B.(2,7] C.(3,7) D.[2,7] E.(4,7)
   8.Let S=R if A={x\x<a},B={x\x>a} then (A∪B)´ is
   A.∅ B.{a} C. {0} D.R{a} E.R