A, B, C and D are four sets such that `AnnB=CnnD=phi`. Consider the following :
1. `AuuC` and `BuuD` are always disjoint.
2. `AnnC and BnnD` are always disjoint
Which of the above statements is/are correct ?

Consider the following statements : 1. An isosceles trapezium is always cyclic. 2. Any cyclic parallelogram is a rectangle. Which of the above statements is/are correct?

Consider the following statements I. sin |x| + cos |x| is always positive II. sin(x^2) + cos (x^2) is always positive Which of the above statement is/are correct?

If A and B are two disjoint sets, then which one of the following is correct?

A= {a, b {c, d}, e} which of the following statements are correct? phi in A

Consider the following statements : 1. If f(x)=x^(2)andg(y)=y^(3) then f=g. 2. Identity function is not always a bijection. Which of the above statements is/are correct ?

Consider the following statements: A real image 1. can be formed on a screen 2. is always magnified and inverted Which of the statements given above is/are correct?

The angles A, B,C, D of a quadrilateral ABCD are in the ratio 1:2:4:5. Consider the following statements : 1. ABCD is a cyclic quadrilateral. 2. sin (B - A) = cos (D - C). Which of the above statements is/are correct ?

If A_n = P_n + 1 , where P_n is the product of the first n prime numbers, then consider the following statements : 1. A_n is always a composite number. 2. A_n + 2 is always an odd number. 3. A_n +1 is always an even number. Which of the above statements is/are correct ?

Consider the following statements: 1. Sum of deviations from mean is always zero. 2. The sum of absolute deviations is minimum when taken around median. Which of the above statements is/are correct?

Consider the following statements for the two non-empty sets A and B : (1) (AnnB)uu(AnnbarB)uu(barAnnB)=AuuB (2) (Auu(barAnnbarB))=AuuB Which of the above statements is/are correct ?