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Wednesday, 21 January 2015

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Maths

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26. If A B then A B is
(A) B – A                              (B) B                      (C) A – B                               (D) A
27.The diagonal of a rectangle is 26m and its perimeter is 68m, find its area?
(A) 34                                    (B) 68                    (C) 120                  (D) 240
28. The roots will be irrational when b2 – 4ac is
(A) Negative                      (B) 0                       (C) is not a perfect square            (D) Rational
29.If
 then |A|=?
(A) 5                                      (B) 10                    (C) 15                                    (D) 20
30. The points which divides the join of (3, 7) and (–2, 4) internally in the ratio of 3:1 is
(A) (0, 0)                              (B) (0,–9)             (C)   ( -3/4 , 19/4 )         (D) ( 4/3 , 19/3 )
31. If the first term of an arithmetic progression is 6 and the 11th term is 76. What is the     5th term?
(A) 27                                    (B) 36                    (C) 34                                    (D) 32
32. Three coins are tossed simultaneously what is probability of obtaining two faces the Same & the other is different.
(A) 3/4                  (B) 1/8                                (C) 5/8                                    (D) 3/8
33.Sin2 Ɵ/1-cos2 Ɵ =
(A) cos Ɵ                             (B) cot Ɵ              (C) cos 2Ɵ                           (D) sin 2Ɵ
34.
(A) e-x                                   (B) ex           (C)lnx                               (D) logx
35.The points (-3,-2) and (4, 5) are ends of a diameter of a circle. What is the radius of the circle?
(A)                                (B)  √98/2                             (C) 85                                   (D) 90



36. sin-1x + cos-1x =?
(A) 45o                            (B) 60o                   (C) 90o                                   (D) 180o
37 .What are the values of x and y if 2x-3y=4 and 3y-8x-2=0                                     
(A)  x=1 and y=2                               (B) x= -1 and y= -2           (C) x= -1 and y=2                              (D) x=1 and y= -2
38.  (cosec –1x) =?
(A) sin–1 ( )                   (B) –                 (C) –                 (D) ( )
39. The area of the rectangle is 320 sq. meters. Its one side is 4 meter larger than the                                         
Other. The length of its sides is,

(A) 11, 15                                             (B) 15, 18                             (C) 16, 20                             (D) 14, 18
40. The angle between vector I and J is
(A) 0o                                     (B) 90o                                   (C) 180o                                (D) none of these
41. Equation of the line whose slope is –1 and which passes through the point (2, –3) is
 (A) x + y +2 =0  (B)x + y + 1 = 0                   (C) x + y = 1                         (D) x + y = 0
42. If  f(x) = 3x – 2 and g(x) = x2– 4 then (f – g) x is
(A) x2 – 3x + 2                                    (B) – x2 + 3x + 2                 (C) x3 + 3x + 2                     (D) x2 + 3x – 6
43.The distance between two parallel straight lines y = 2x + 7 and y = 2x + 5 is
(A) 7/                               (B) 5/                                                (C) 2/                                (D) 12/
44. The set of the points in a plane when the distance of each of which from a given         
        Point in the plane is constant, is called

(A) straight line                          (B) circle                                      (C) hyperbola                    (D) parabola
45.cot–1 ( )
(A) sin–1 ( )                       (B) cos–1 ( )                                       (C) tan–1 ( )                       (D) none of these
46. 1 radian = ____________
(A) 57o 17 45                    (B) 47o 18 30                       (C) 53o 17 45                                     (D) none of these
47.If  (x , y) are coordinates of a point P, then x– coordinate is also called
(A) ordinate                       (B) ordered pair                                (C) abscissa                         (D) none of these

48. A graph of the linear equation is always
(A) straight line                                 (B) parabola                                       (C) Ellipse                            (D) circle
49. If  31+x  + 5.3x – 8 = 0, then x =
(A)8                       (B) 5                                       (C) 3                                       (D) 0
50.nC2 = exists when n is _______

(A) n >2                                (B) n ≤2                                (C) n <2                                (D) n ≥ 2

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