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
- If P={x\x3+x2-6x=0 and x≥0} then P=…………
A.{2,0,-3} B.{2} C.{2,0} D.{-2} E.{2,-3}
2 C.-1/2 D.1/4 E.1/2
7.5(32 )/(5^3 )^2 =…….
A.1 B.0 C.25 D.125 E.625
8.(-1)^(-1) +(-1)^0 =……….
A. 2 B.1 C.0 D. -1 E.-2 - Which of the following is (are) false?
1.(a+b)^2 =a^2 +b^2 2.√(a+b) =√a +√b 3.(ab)2 =a2b2
A.1 only B. 2only C. 3 only D. 1 and 2 only E. None of these
10.((a2+b2 )^2 (a+b))/(a-b)^2 =………….
A.(a+b)3 B.(a-b)3 C.(a-b)(a+b) D.(a-b)2 (a+b) E.(a-b)(a+b)3
11.If 152x+1=1 ,then x=……….
A. -1 B. 0 C. 1/2 D. -1/2 E.-2 - If (0.2)x=125 , then x=………
A. -3 B.0 C.3 D.4 E.5 - If 4x+1=8x, then x=……..
A. -3 B.-2 C.-1 D.1 E.2
14.If 3x+1=8x+1, then x=……….
A.0 B. -1 C.1 D.1/2 E. None of above
15.(-4)-1+(-1)-4=……….