Question # 1

The angle between lines xy =0 is

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45°

60°

90°

180°

In any triangle ABC,with usual notationαsinβ =____;

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b sinα

bsinβ

αsinα

None of these

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real number

complex number

rational number

irrational number

For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?

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3a2

2a2

2a

-7a

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quadrant I

quadrant II

quadrant III

quadrant IV

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The set {0,-1} hold closure property under

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Addition

Both a & c

Multiplication

None of these

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quadrant I

quadrant II

quadrant III

quadrant IV

The statement that a group can have more than one identity elements is

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True

False

Fallacious

Some times true

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1

0

If in a set of real no a is multiplicative identity then

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a,a = a²

a,a = 1

a,a = 0

None of these

The set of first elements of the ordered pairs in a relation is called its

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domain

range

relation

function

(x + 2)²= x²+ 4x + 4 is

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A linear equation

A cubic equation

A quadratic equation

None

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7

5

6

None of these

The tangents drawn from the point P to a circle are imaginary if

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P is on the circle

P is inside the circle

P is outside the circle

none of these

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A Series which does not coverage to a Unique sum is called

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Harmonic Series

Oscillatroy Series

Arithmetic Series

None of these

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A triangle which is not right angle is called ______ triangle

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acute

Obtuse

Right

Oblique

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1.5

1.2

8

None of these

Every real number is

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A complex number

A rational number

A natural number

A prime number

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0

-1

1

2

The equation of the plane which bisects the line joining (2, 3, 4) and (6, 7, 8) is

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x + y + z - 15 = 0

x - y + z - 15 = 0

x - y - z - 15 = 0

x + y + z + 15 = 0

The sum of the focal distance from any point on the ellipse 9x2 +16y2 =144 is

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32

16

18

8

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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a f(x) + c

f(x) + a

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f(x) = 3x/x² + 1 is:

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an even function

an odd function

an even and implicit function

neither even nor a odd

The real numbers which satisfy an inequality form its

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solution

coefficient

domain

range

The function f{(x, y) | y = ax²+ bx + c} is

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One-one function

Constant function

Onto function

Quadratic function

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