Question # 1

Period of cosec x is ______

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Three consecutive terms of a progression are 30, 24, 20. The next terms of the progression is

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0

1

2

4

Which of the following is not a quadrantal angle

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90°

100°

180°

270°

The negation of a number

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a relation

a function

unary operation

binary operation

The radian measure of the central angle of an arc 50 m long on a circle of radius 25 m is

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3

2

1

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

The zero vector is regarded to be parallel to

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Every vector

Is some cases

Both a,b

None

Which one is a pair of allied angles

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(180° -θ)

(180° -θ,180° +θ)

(180° +θ)

None of these

The root of the quadratic equation are

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3

2

1

4

The set (Z, +) forms a group

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Forms a group w.r.t addition

Forms a group w.r.t multiplication

Non commutative group w.r.t multiplication

Doesn't form a group

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Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

Domain of 2 cos x is ______

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[-2, 2]

R

Negative real numbers

None of these

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If (2, 3) is the mid point of (a, 3) and (5, b) then

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a = 1 , b = -3

a = -1 , b = 3

a = 1 , b =3

a = -1 , b = -3

sin(a + β)+sin(a -β) =_____;

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2cosa cosβ

2sina cosβ

2cosa sinβ

-2sina sinβ

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none of these

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Imaginary

Rational

Irrational

Real numbers

The standard parabolic form of the equation f(x) = x² +4 x +1 is

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x(x+4)+1

(x+2)²-3

(x+4)³ + 9

x(x-2)²+1

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f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

r + 3 >5 then which is true

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r + 2 > 4

r + 2 < 4

r + 2 = 4

None

Tan 180° = ______

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-1

0

1

Undefined

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If sin A = cos A, 0°<A<90° then A is equal to

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1

1/2

0

None of these

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none of these

If the st. line 3x + 4y = K touches the circle x²+ y²- 10x = 0 then the value of K is

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-1 or 20

-10 or 40

-2 or 20

2 or 20

A diagonal matrix in which the diagonal elements are equal is called a

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Null matrix

Identity matrix

Scalar matrix

Row matrix

E-radius corresponding to < A is

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sin (α+β) - sin (α -β) =

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4 cosαsinβ

2 cosαsinβ

4 cosαcosβ

4 sin αsinβ

The 7th term of the A.P 7,11,15,is

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24

31

26

23

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