Question # 1

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I f a =5i + 2j, then|a| =

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√13

√7

1/√13

√29

{1, 2, 3, 4,.....} is set of ______

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Natural numbers

Whole numbers

Integers

Rational numbers

If a polynomial p(x) is divided by x-c, then the remainder is

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p(x)

x-c

c

P(c)

The set {1,-1, i, -i} form a group under

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Addition

Multiplication

Subtraction

None

System of linear equation is inconsistent if

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System has no solution

System has one solution

System has two solution

None of above

If a +b +c =0 then which of the following is true

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a =b =c =0

a,b =b,c =c,a

a xb=b xc =c xa

None

An equation of the form ax + by = k is homogeneous linear equation when

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b = 0, a = 0

a = 0,b ≠ 0

b = -0,a≠ 0

a≠ 0,b≠ 0, k = 0

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none of these

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perpendicular vectors

concurrent vectors

parallel vectors

none of these

The distance of point P(x,y) from focus in a parabola

y² =4ax, is:

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2a

a

x + a

x-a

If x < y, 2x = A, and 2y = B, then

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A = B

A < B

A < x

B < y

If x² + px + 1 is a factor of ax³+ bx +c, then

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a²+ c²= -ab

a²- c²= -ab

a²- c²= ab

None of these

How many arrangements of the letters of the word ADDING can be made

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(x + 2)²= x²+ 4x + 4 is

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A linear equation

A cubic equation

A quadratic equation

None

What is the number of elements of the power set of { }

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0

1

2

3

The eccentricity of parabola is:

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1

0

Greater than 1

Less than 1

Onto function is also called

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Binjective function

Injective function

Surjechive function

None of these

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1

7

4

None of these

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0

1

-1

None of these

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1

2

3/2

5/2

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

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none of these

The first three terms in the expansion of (1 - x)^-1are

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1 + x + x²

1 - x - x²

-1 -x +x²

1 - x + x²

The magnitude of vector a 2i-7j is

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√23

√43

3

√53

The number of combinations of 10 different objects taken 8 objects at a time is

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90

45

55

50

The roots of the equation ax²+ bx + c = 0 are complex/imaginary if

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b²- 4ac < 0

b²- 4ac = 0

b²- 4ac > 0

None of these

Range if y = cos x is

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-1≤ y≤ 1

-1 < y < 1

-∞ < x < +∞

None of these

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