Question # 1

For two vector a and b, a+b = _______

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a b

b+a

b-a

None

Which of the following sets is finite

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The set of natural numbers between 3 and 10

The set of rational numbers between 3 and 10

The set of real numbers between 0 and 1

The set of rational numbers between 0 and 1

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0

-1

1/2

1

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0

1

-1

2

The symbol of irrational is

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W

N

Q

Q'

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none of these

The set { {a,b} } is

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Infinite set

Singleton set

Two points set

Empty set

Two matrices A and B are conformable for the product AB if

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Both A and B are square

Both A and B are symmetric

Number of rows of A = number of columns of B

Number of columns of A = number of rows of B

System of linear equations is inconsistent if

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System has no solution

System has one solution

System has two solution

None of above

The point of concurrency of the medians of the ΔABC is called its

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Orthocenter

Centriod

Circumcentre

Incentre

The domain and range of a trigonometric function can be allocate by their

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graph

Continuity

Discontinuity

Periods

The sum of all even numbers less than 100 is

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2450

2352

2272

2468

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x = f(y)

y = f(x)

x = f(x)

y = f(y)

Total number of subsets that can be formed out of the set {a,b,c} is

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1

4

8

12

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Hermitian matrix

Skew-hermitian matrix

Symmetric matrix

Identity matrix

A rule that assigns to each elements x in X a unique element y in Y is called a ____________

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domain

range

function

none of these

The set (Z, +) forms a group

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t multiplication

Doesn't form a group

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Free vector

Null vector

Unit vector

None of these

A = [3] is a/an

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Square matrix

Scalar matrix

Diagonal matrix

Identity matrix

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The equation of motion of a stone thrown vertically up wards is s = ut - 4.9t²the maximum height attained by it =

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If (x₁, y₁) and (x₂,y₂) are the end points of a diameter then the centre of the circle is

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6x - 2 + c

x³- x²+ x + c

6x - x²+ c

6x³- x²+ c

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For n€ N,2^n>2 > n is to only when

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n<2

n≤ 4

n≥ 4

If t is the parameter for one end of a focal chord of the parabola y²= 4ax, then its length is

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If there are m rows and n columns in a matrix then its order is

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m x n

m x m

n x n

n x m

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c = 0

c = -1

c = -2

c = 1

The coordinates of a point P(x,y) referred to XY-system are

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(x+y,y+k)

(x-h,y-k)

(x,y)

(x-h,y-k)

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