test questionnaire in mathematics

May 19th, 2015
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(1) If z1, z2, z3 are vertices of an equilateral triangle with z0 its centroid, then is equal to: (2) The number of complex numbers z such that equals: (3) If then is equal to

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Section 3Mathematics(1) If z1, z2, z3 are vertices of an equilateral triangle with z0 its centroid, then is equal to:(A) (B) (C) (D) (2) The number of complex numbers z such that equals:(A) 0(B) 1(C) 2(D) (3) If thenis equal to(A) 1(B) 1 (C) x + y + z(D) (x + y + z)(4) General value of x for which the sets and are equal to(A) (B) (C) (D) (5) In , the minimum value of the sum of the squares of its sides is(A) (B) (C) (D) (6) If , then the value of is(A) 1(B) 0(C) x + y +z(D) x2y2z2(7) The range of is(A) (B) (C) (D) (8) A five digit number is formed by writing the digit 1, 2, 3, 4, 5 in random order without repetition. Then, the probability that the number is divisible by 4, is:(A) (B) (C) (D) (9) The value of is(A) (B) (C) (D) (10) If and is continuous at x = 0, then the ordered pair (a, b) is(A) (B) (C) ( - 1, -3)(D) (1, 3)(11) If , then the value is(A) positive(B) (C) 0(D) none of these(12) The length of the major axis of the ellipse is(A) 10(B) (C) (D) 4(13) Let Then is (A) (B) (C) (D) (14) If , then I equals(A) (B) (C) (D) (15) The value of is(A) (

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