If sin θ= 1/3 and θ is acute, then cos θ=……….
A.√3/2 B.1/2 C.√2/3 D.√8/3 E.2/√3
- In the given figure ⨀ O , OP = 3 cm and AB = √27cm. Then the length of the arc AB is
A. 3π cm B. 2π cm C. πcm D. 2π/3 cm E.π/3 cm
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}
10.The graph of the solution set of the inequation 5-x≥1 is
A. B. C. D. E.
4 4 -4 -4 -4
11.If A={a,b,c} , B={b,c,d} and C= {a,b,e} then A∩(B∪C)=……
A. {a,d,e} B.{a,d} C.{a,c,d} D.{a,b,d} E.{a,b,c}
- If x∈ (P∩Q), which of the following is (are) true?
1.x∈P 2. x∈ 3. x∈(P∪ Q)
A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3
- A={x\x is an integer,1<x<12} and
B={x\x is a positive integer and less than 15
