Question # 1

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Necesarily

Not necessarily

Must be

None of these

Conjugate of -3 is:

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3

-3

-3i

3i

In two similar triangles ________ sides are proportional:

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Corresponding

Opposite

Both a and b

None of these

Diagonals of a parallelogram cut each other in the ratio:

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1:1

2:1

3:1

4:1

If log_x64 = 2 then value of x will be:

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64

2

8

64²

LCM of a²+b² and a⁴-b⁴ is:

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a²+b²

a²-b²

a⁴-b⁴

a-b

HCF of 5x²y² and 20x³y³ is:

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5x²y²

20x³y³

10x⁵y⁵

5xy

The right bisectors of the three sides of n triangle are________:

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Congruent

Collinear

Concurrent

Parallel

Triangles are of same shape but different sizes:

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Similar

Corresponding

Congurent

Alternate

In a triangle, there can be ________ right angle (s):

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Atleast one

Almost one

Two

No

Which of them is not an acute angle

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30°

60°

80°

90°

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Two triangles are said to be congruent if all the three sides and angles are _______:

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Equal

Congruent

Concurrent

Similar

Obtuse angle triangle having ________ angles are greater then 90°:

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1

2

3

4

The opposite angles of any quadrilateral inscribed in a _______ are supplementary:

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Circle

Square

Hexagon

Rectangle

Sum of the roots =

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A∩ A^c= ...........................

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∪

A^c

∅

A

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The radius of incricle is called:

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In-radius

Escribed radius

E-radius

Radius

Power set of an empty set is:

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{a}

If Y is directly proportional to x it can be written as:

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x = y

y : x

If b²-4ac = 0, then roots are:

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Rationaland equal

Irrationaland equal

Irrationaland unequal

Rational and unequal

1/tanθ =............

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tanθ

Secθ

Co secθ

Cotθ

3π/2 Radian =__________________

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30^o

135^o

180^o

270^o

Circles having three points in common:

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Over lapping

Collinear

Not coincide

The n^th positive root of the product of the x₁,x₂,x₃..................x_n observations is called:

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Mode

Mean

Geometric mean

Sum of the deviations of the variable "X" from its mean is always:

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Zero

One

Same

A Deviation is defined as a difference of any value of the variable from a:

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Constant

Histogram

Sum

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