1) The regression lines are 4x-5y-33=0, 2x-9y+107=0 then find the mean of x and ya) 13, 17b) 12, 13c) 15, 13d) none of these 2) a) ...

1) In an entrance test there are multiple choice questions. There are four possible answers to each question of which one is correct. The probability that a student knows ...

1) A body is on the point of sliding down an inclined plance under its own weight. If the inclination of the plane to the horizon be , the ...

1) ABCD is quadrilateral. Forces represented by act on particle. The resultant of these forces isa) b) c) d) 2) ...

1) The statement ~ (p q) is equivalent to a) P (~ q) b) ...

1) If a) d = bc b) c = bd c) b = cd d) none of these 2) The solution of ...

1) The value of is a) 4i b) 8i c) 16i d) -16i 2) Given that real roots of and are negative. Then the number ...

1) If z is a nonzero complex number then is equal to (i)(ii) 1(iii) (iv)none of these a) i and ii...

1) For any two complex numbers and any two real numbers a and b, a) b) c) d) ...

1) a) 2 b) 4 c) 6 d) none of these 2) The centre of a square is at the origin and is one of its vertices. The extremities ...

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