| 1 |
Sin(a + b) + Sin(a- b) =
|
A. Sin a Cos b
B. Sin a Sin b
C. Sin a + Cos b
D. Sin a - 2Cos b
|
| 2 |
If Z1 = √-36, Z2=√-25, Z3= √-16, then what is the sum of Z1, Z2 and Z3 ?
|
A. √3 I
B. √7
C. -2-1
D. √5
|
| 3 |
If f1 (x) and f2 (x) are any two anti derivatives of a function F (x) then the value of f1 (x) = f2 (x)
|
A. A variable
B. A constant
C. Undefined
D. Infinity
|
| 4 |
Which of the following is solution of Tan2 x = 1/3
|
A. 7π/6
B. 5π/6
C. π/6
D. All
|
| 5 |
If |A| ≠ 0 then A is called
|
A. 1
B. -1
C. ±1
D. 0
|
| 6 |
Which is not a half plane
|
A. ax + by < c
B. ax + by > c
C. Both A and B
D. None
|
| 7 |
A sequence of numbers whose reciprocals forms an arithmetic sequence is called
|
A. Harmonic series
B. Arithmetic series
C. Harmonic sequence
D. Geometric sequence
|
| 8 |
The angle a (0° < a< 180°) measured counterclockwise from positive x-axis to a non-horizontal straight line / is called the
|
A. Rotation
B. Inclination
C. Radian
D. None
|
| 9 |
The area of circle of unit radius=
|
A. 0
B. 1
C. 4
D. π
|
| 10 |
The equation of the line with gradient 1 passing through the point (h,k) is
|
A. Y = x+ k-h
B. Y = k/hx +1
C. Y = x + h -l
D. Ky = hx =1
|
| 11 |
ω88 = ?
|
A. A and B are multiplicative inverse of each other
B. A and B are additive inverses of each other
C. A and B are singular matrices
D. A and B are equal
|
| 12 |
The mid point of the line joining (=1,-3) to(3,-5) is
|
A. (1, 1)
B. (1,-1)
C. (2, -8)
D. (1, -4)
|
| 13 |
120° degrees are equal to how many radians?
|
A. π/3 radians
B. 2π/3 radians
C. π/4 radians
D. π/2 radians
|
| 14 |
Sec-1 x=
|
A. Cos-1 1/x
B. Cosec-1 1/x
C. Cos-1 (-x)
D. Tan-1 x
|
| 15 |
If a line passes through origin then the equation of the line is
|
A. y = m/x
B. y = mx
C. x = my
D. None
|
| 16 |
If p and r are integers P = 0, and p ≠ -r, which of the following must be true?
|
A. p < r
B. p > r
C. p + r < 0
D. p - r < -0
|
| 17 |
The number of ways in which 5 distinct toys can be distributed among 3 children is
|
A. 35
B. 53
C. C53
D. P53
|
| 18 |
3/2 is
|
A. An irrational number
B. Whole number
C. A positive integer
D. A rational number
|
| 19 |
The equation of the normal to the circle x2 + 22 = 25 at (4,3) is
|
A. 3x -4y =0
B. 3x -4y= 5
C. 4x + 3y=5
D. 4x - 3y =25
|
| 20 |
The number of real roots in cube roots of 8 is ?
|
A. n x m
B. m x n
C. km x n
D. m x kn
|
| 21 |
A relation in which the equality is true only for some values of the unknown variable is called
|
A. An identity
B. An equation
C. A polynomial
D. Inverse function
|
| 22 |
The value of x, and y, when (x+iy)2=5+4i
|
A. X=2, y=-1
B. X=-2, y=1
C. X=2, y=-i
D. X=2, y=2
|
| 23 |
The perpendicular bisector of any chord of a circle
|
A. Passes through the center of the circle
B. Does not pass through the center of the circle
C. May or may not pass through the center of the circle
D. None of these
|
| 24 |
0 (zero) is
|
A. A irrational number
B. A rational number
C. A negative integer
D. A positive number
|
| 25 |
Sin-1 √3/2 =?
|
A. 2π/3
B. π/2
C. π/3
D. v/5
|
| 26 |
Sin-1 (-x) =?
|
A. Sin-1 x
B. -Sin-1 x
C. Cos-1 x
D. -Cos-1 x
|
| 27 |
The complement of set A relative to universal set U is the set
|
A. X
B. X
C. φ
D. Universal set
|
| 28 |
8 > t then
|
A. (s -t) 2>(t -8)2
B. (s -t) 2<(t -8)2
C. (s -t) 2=(t -8)2
D. None
|
| 29 |
If Cosα = 3/5, Cosβ = 5/13, then
|
A. Cos(α +β) =33/65
B. Sin(α +β) =56/65
C. sin2(α +β/2) =1/65
D. Cos(α +β) =63/65
|
| 30 |
Two matrices A and B are conformable for multiplication (AB) if and only if
|
A. Addition
B. Multiplication
C. Division
D. Subtraction
|
| 31 |
If f(x) : A → B and g (x) : A → B then Dom [f(x) + g(x)] is
|
A. Dom f(x) ∩ Dom g (x)
B. Dom f(x) ∪ Dom g(x)
C. [Domf(x)]2 - [Dom g(x)]2
D. [Dom g(x)]2 -[Domf(x)]2
|
| 32 |
The two consecutive positive integers whose product is 56 are
|
A. 7, 8
B. 14, 4
C. 28, 2
D. 56, 1
|
| 33 |
If Z1 = 1+i, Z2 = 2+3i, then |Z2-Z1|=?
|
A. √3 I
B. √7
C. -2-1
D. √5
|
| 34 |
The multiplicative inverse of x such that x = 0 is
|
A. -x
B. does not exist
C. 1/x
D. 0
|
| 35 |
If A and B are two events then P(A∪B) =? (when A and B are disjoint)
|
A. P(A) - P(B)
B. P(A) x P(B)
C. P(A) + P(B)
D. P(A) + P(B) -P(A∩B)
|
| 36 |
Sin-1 (√2/2)=?
|
A. π/2
B. π/3
C. 3π/4
D. 2π
|
| 37 |
d/dx ∫x1 dx =________.
|
A. 1/4 x4
B. X3
C. 3x3
D. x4/4
|
| 38 |
If A and B are matrices such that AB=BA=I then
|
A. A and B are multiplicative inverse of each other
B. A and B are additive inverses of each other
C. A and B are singular matrices
D. A and B are equal
|
| 39 |
For any set X, X∪X is
|
A. 15
B. 15i
C. -15i
D. -15
|
| 40 |
d/dx (3y4) =
|
A. 12y3 dy/dx
B. 8y3
C. 8y3 dy/dx
D. 12y3
|
| 41 |
Which is in the solution set of 4x - 3y <2
|
A. (3,0)
B. (4,1)
C. (1,3)
D. None
|
| 42 |
The difference of two consecutive terms of an A.P is called
|
A. Zero
B. One
C. Four
D. Infinite
|
| 43 |
A die is thrown what is the probability that there is a prime number on the top?
|
A. 1/2
B. 1/3
C. 1/6
D. 2/3
|
| 44 |
In the figure PS is perpendicular to QR, if PQ = PR 26 and P8 = 24,then QR=
|
A. 10
B. 20
C. 40
D. 26
|
| 45 |
Derivative of strictly increasing function is always
|
A. Zero
B. Positive
C. Negative
D. Both A and B
|
| 46 |
If x < y, 2x = A and 2y = B then
|
A. A =B
B. A < B
C. A< X
D. B < y
|
| 47 |
Sum of integers starting from to n is
|
A. n(n+1)/4
B. n(n+1)/6
C. n(n+1)/2
D. n(n-1)/2
|
| 48 |
In a school, there are 150 students. Out of these 80 students enrolled for mathematics class, 50 enrolled for English class, and 60 enrolled for Physics class. The student enrolled for English cannot attend any other class, but the students of mathematics and Physics can take two courses at a time. Find the number of students who have taken both physics and mathematics.
|
A. 40
B. 30
C. 50
D. 20
|
| 49 |
If the vector 2i+4j-2k and 2i +6j+xk are perpendicular then x-7
|
A. 4
B. 8
C. 14
D. 7
|
| 50 |
In general matrices do not satisfy
|
A. Not a group
B. A group w.r.t. subtraction
C. A group w.r.t. division
D. A group w.r.t. multiplication
|
| 51 |
Sin 720° = ________
|
A. 1
B. 0
C. 2
D. 1/2
|
| 52 |
∫1/ax +b dx =
|
A. 1/a log |ax + b| +c
B. Log |ax + b| +c
C. 1/b log |ax +b| +c
D. 1/x log |ax + b| +c
|
| 53 |
The range of inequality x + 2 > 4 is
|
A. (-1,2)
B. (-2,2)
C. (1,∞)
D. None
|
| 54 |
The Domain of f(x) = log x is
|
A. [0,∞]
B. (0, ∞)
C. [0,∞[
D. [∞ ,∞]
|
| 55 |
The axis of the parabola y2 = 4ax is
|
A. x =0
B. Y =0
C. X = y
D. X = -y
|
| 56 |
(x+2)2 = x2 +4x +4 is
|
A. 1
B. 2
C. 3
D. 4
|
| 57 |
If a rectangle has an area 81x2 and length of 27x. then what is its width?
|
A. 3x
B. 9x
C. 3x2
D. 9x2
|
| 58 |
π/3 is
|
A. A positive integer
B. A negative integer
C. A natural number
D. An irrational number
|
| 59 |
The length of rectangle is twice as much as its breadth. If the perimeter is 120 cm, the length of the rectangle is
|
A. Same as the original determinant
B. Additive inverse of the original determinant
C. Both A and B
D. Adj of the original matrix
|
| 60 |
A fraction in which the degree of the numerator is less than the degree of the denominator is called
|
A. 1-i √-3 / 2
B. -1+i √-3 / 2i
C. -1+i √3 / 2
D. 1+i √3 / 2
|
| 61 |
An m x n matrix is said to be rectangular if
|
A. Forms a group w.r.t. addition
B. Non commutative group w.r.t. multiplication
C. Forms a group w.r.t. multiplication
D. Doesn't form a group
|
| 62 |
Second derivative of y = x9 + 10x2 + 2x -1 at x = 0 is
|
A. 10
B. 20
C. 12
D. 1
|
| 63 |
If sinθ = 1 then θ =
|
A. 2nπ +π/2
B. 2nπ
C. 2π +n
D. Nπ +π/2
|
| 64 |
Find the geometric mean between 4 and 16
|
A. 7, 8
B. 14, 4
C. 28, 2
D. 56, 1
|
| 65 |
x is a member of the set {-1,0,3,5} y is a member of the set {-2,1,2,4} which is possible?
|
A. x- y =-6
B. x -y < -6
C. x -y > 6
D. None
|
| 66 |
If θ= 60° then
|
A. sin θ = 1/2
B. tan θ = cot 30°
C. θ = π/4
D. Sec θ =4
|
| 67 |
If i,m,n are the direction cosines of a vector O̅P̅ then
|
A. I2 + m2 + n2 =0
B. I2 - m2 + n2 =1
C. I2 + m2 + n2 =1
D. I2 + m2 - n2 =0
|
| 68 |
Sin (2π -θ) =______.
|
A. Cosθ
B. -Sinθ
C. -Sinθ
D. -cosθ
|
| 69 |
Given eight points in a plane no three of which are collinear how many lines do the points determine?
|
A. 16
B. 64
C. 28
D. 36
|
| 70 |
AreCot √3 =?
|
A. π/2
B. π
C. 2π
D. π/6
|