Question # 1

A circle drawn inside a triangle and touching its sides is called ______;

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Circumcirle

Incircle

Escribed circle

unit circle

sin (α+β) + sin (α-β)

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2 sinαcosβ

sin (2αβ)

sinαcosα

None of these

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-2

-1

1

2

n different objects can be arranged taken all at a time in ______

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(n + 1)! ways

(n - 1)! ways

n! ways

n ways

How many term are there in the A.P, in which a₁ = 11 , a_n =68, d=3

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30

27

20

21

If T = {2,4,6,8,10,12}, then

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T = (First six natural numbers)

T = (First six odd numbers)

T = (First six real numbers)

T = ( First six even numbers)

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One-to-one and onto

One-to-one but not on to

Onto but not one-to-one

Neither one-to-one nor onto

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Sin 270° = ______

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-1

0

1

Undefined

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Proper fraction

Improper fraction

Rational fraction

None of these

3/4 is ______

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An odd number

An even number

A natural number

A rational number

Tan 180° = ______

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-1

0

1

Undefined

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2x - 3x + c

x²- 3x + c

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additive property

multiplicative property

additive identity

multiplicative identity

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If the equation x2+2x-3=0 and x2+3x-k=0 have a common root then the non - zero value of k is

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1

3

2

4

If 4 - x >5, then

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x > 1

x > -1

x < 1

x < -1

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The term independent of x is the expansion (x³+1/x)¹²

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295

495

395

722

The general term of a sequence is denoted by

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a₁

a_n

n

s_n

Let A and B be two sets. If every element of A is also an element of B then

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The graph of a quadratic function is

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Circle

Ellipse

Parabola

Hexagon

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(A∩Bc)c= -------------------------

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Ac∪Bc

Ac∪B

Ac∩B

None of these

In an A.P,a +(n-a)d is

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1st term

General term

Last term

None of these

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2x cos x2

2sinxcosx

- sin x2

2x sin x2

For any set B,B∪B' is

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Is set B

Set B'

Universal set

If origin is the mid point of (a, -3) and (-5, b) then

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a = -5 , b = -3

a = 5 , b =3

a = -5 , b = 3

a = 5 , b = -3

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