Part two of this Question Series. Questions from 9-16 are provided below. Refer to the related post section for questions 1-8 of this collection.
9) The point of intersection of the lines and is
a) (0,0,-4)
b) (1,0,0)
c) (0,2,0)
d) (1,2,0)
10) The centre and radius of the sphere given by x2 + y2 + z2 - 6x + 8y - 10z + 1 = 0 is
a) (- 3, 4, - 5), 49
b) (- 6, 8, - 10), 1
c) (3, - 4, 5), 7
d) (6, - 8, 10), 7
11) The value of is
a) 2
b) 0
c) -1
d) 1
12) If the point represented by the complex number iz is rotated about the origin through the angle ��/2 in the counter clockwise direction then the complex number representing the new position is
a) iz
b) -iz
c) -z
d) z
13) If is a root of the equation ax2+bx+1=0 , where a,b are real then (a,b) is
a) (1,1)
b) (1,-1)
c) (0,1)
d) (1,0)
14) Which of the following is incorrect?
a)
b)
c)
d)
15) The axis of the parabola y2 - 2y + 8x - 23 = 0 is
a) y=-1
b) x=-3
c) x=3
d) y=1
16) The line 4x + 2y = c is a tangent to the parabola y2 = 16x then c is
a) -1
b) -2
c) 4
d) -4
Check out Part 3 here.
Maths - Objective Type Questions - +2- Collection 1- Part 2
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