Question # 1

If e,e′ be the eccentricities of two conics S=0 and S′ =0 and if e2 +e′2 =3 then both S and S′ can be

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Hyperbola

Parabolas

Ellipses

None of these

(0.90)^1/2is equal to

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0.99

0.90

0.80

0.88

The points A(+1,-1),B(3,0),C(3,7),D(1,8) are vertices of

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Square

Parallelogram

Rectangle

Trapezium

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c = 0

c = -1

c = -2

c = 1

If n is any positive integer then n! > 2^n-1for

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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 complement of set A relative to universal set U is the set

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{x / x∈ A∧ x∈ U}

{x / x∉ A∧ x ∈ U}

{x / x∈ A and x ∉ U}

A-U

The point R dividing internally the line joining the points P(x₁, y₁) and Q(x₂, y₂) in the ratio K₁: K₂has the coordinates

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1

-1

The liner equation ax + by = c is called _________ of the inequality ax +by > c.

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Associated equation

Non-associated equation

disjoint equation

Feasible equation

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p < r

p > rr

p + r < 0

p - r < 0

Two positive integers whose sum is 30 and their product will be maximum are

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12,18

10,20

15,15

14,16

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Zero matrix

Diagonal matrix

Column matrix

Scalar matrix

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0

-2

1

4

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perpendicular vectors

concurrent vectors

parallel vectors

none of these

The maximum value of the quadratic function f(x) = -2x2+20x,is

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4

3

50

7

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2

1

5

0

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A variable

A constant

0

None of these

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Which of the following is a vector.

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distance

temperature

energy

acceleration

A function from X to Y is written as

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f : X to Y

f : Y to Y

The law of tangents is ______

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If f (x) is defined and continuous then f (x) is always

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Rational function

Trigonometric function

Logarithmic function

All are correct

An equation which holds good for all values of variables is called

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Equation

Conditional equation

Constant

None

√(-1b) =?

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b i

-i b

b2

i√b

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The set {Z\{0}} is group w.r.t

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Addition

Multiplication

Division

Subtraction

sinα=

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2 sinαcosα

2 sinαcosβ

2 sinα/2 cosα/2

1+ tan²α/2

Multiplicative inverse of 0 is

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0

1

+-1

Does not exist

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