Question # 1

The number of non zero rows in echelon form of a matrix is called

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Order of matrix

Rank of matrix

Row operation

None of these

A number A is said to be the A.M between the two numbers a and b if a, A, b are in

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A.M

A.P

G.P

G.M

Which one is quadrantal angle

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8181710°

2345°

-8181180°

-2344°

The range of the function f : x→ y is defined by

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{x| y = f (x) ∀x∈ X ∧y∈y}

{(x,y) |y = f (x)∀x∈ X}

{y|y = f (x) ∀x∈ X ∧y∈y}

Y

If x³+ 4x³- 2x +5 is divided by x - 1, then the reminder is

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8

6

4

None of these

The equation of the sphere thro' the origin and making intercepts a, b, c on co-ordinate axes is

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x²+ y²+ z²+ ax + by + cz = 0

x²+ y²+ z²- 2ax - 2 by - 2 cz = 0

x²+ y²+ z²= a + b + c

x²+ y²+ z²- ax - by - cz =0

The term involving x⁴in the expansion of (3 - 2x)⁷is

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120

1512

1250

15120

Which of the following is a scalar.

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force

frequency

weight

acceleration

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Reciprocal equation

Exponential equation

Radical equation

None of these

Ifᵨ> 1 , then the conic, is:

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Ellipse

Parabola

Hyperbola

None of these

A card is drawn from a pack of cards numbered 2 to 53. the probability that the number on the card is prime number less than 20 is

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2 / 13

4 / 13

5 / 13

8 / 13

The sample space for tossing a coin once is

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{T, T}

{H, H}

{H, T}

None of these

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The equation of the circle with centre origin and radius r is

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x²+ y²= 1

x²+ y²= r²

x²+ y²= 0

x²- y²= r²

Matrix multiplication is

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Commutative

Not commutative

Not associative

Not distributive

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A finite set

An infinite set

An empty set

None of these

The tangent to the parabola y2 =4ax and perpendicular line from the focus on it meet

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x =0

y =0

x =-9

y = -a

The point of concurrency of the right bisectors of the sides of a triangle is called

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incentre

circum center

e-center

centroid

The set X is

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Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

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A polynomial P(x)has a factor (x-a)if P(a) =

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a

x

1

0

The cube roots of 8 are

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7²ⁿ+ 3^n-1. 2^3n-3is divisible by

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24

25

9

13

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1

-1

Tan 180° = ______

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-1

0

1

Undefined

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The set of rational number is represented by

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W

R

Q'

Q

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