Question # 1

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Three dice are thrown together. The probability of getting a total of at least 6 is

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103 / 108

10 / 216

93 / 108

None of these

If f(x) = x²-x then f(1) is

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0

1

2

3

{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

i is equal

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(1 , 0)

(0 , 1)

(1 , 1)

(0 , 0)

If a > 0, b > 0, c > 0, then the roots of the equation ax²+ bx + c = 0 are

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Real and negative

Non-real with negative real parts

Real and positive

Nothing can be said

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The domain of the principle sine function is

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cosθ/2=

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Commutative property of addition

Closure property of addition

Additive inverse

Associative property w.r.t. to addition

The roots of ax2 + bx + c = 0 are always unequal if

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b2 - 4ac = 0

b2- 4ac ≠ 0

b2- 4ac > 0

b2- 4ac ≥ 0

The distance between the points (2,3) and (3,2) is

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5

2

10

If a force F = 2i + j +3k acts at point (1,-2,2) of a body then the moment of F about a pint lying on the line of action of the force is

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5

Equal to the moment of the force about origin

0

Cannot be found

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all are correct

3x + 4 < 0 is

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inequality

equation

identity

not inequality

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

If x-2 and x-1 both are factors of x³-3x³+2x-4p, then P must equal to

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1

2

0

-2

1/3 is ______

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A prime number

An integer

A rational number

An irrational number

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If f(x) = -x²then f(-2) is

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-2

2

-4

4

If A is a non singular matrix then A^-1= ______

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The difference of two consecutive terms of an A.P. is called ______

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General term

Common ratio

Common difference

None of these

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cot x + c

tan x + c

-cot x + c

-tan x + c

A number A is called the arithmetic mean between a and b if a, A, b is ______

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Arithmetic sequence

Geometric sequence

Harmonic sequence

Arithmetic sequence

p(x) = 2x⁴- 3x³+ 2x - 1 is polynomial of degree

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1

2

3

4

The solution set of the equation |3x + 2| = 5 is

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The graph of the quadratic equation is

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Straight line

Circle

Parabola

elipse

One minute is denoted by

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1⁰

1'

1"

None of these

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π

π/6

-π/2

2π

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