Question # 1

1⁰= ______

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360'

60"

60'

3600'

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a

2a

3a

4a

The area of sector with central angle of 1 radians in a circular region whose radius is 2 m is

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The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

Period of cos x is _____

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The principal value of sin^-1[-√(√3) /2] is

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5π/3

-2π/3

-

π/3

An event having more than one sample point is called

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Certain event

Compound event

Simple event

None

If the focus lies on the y-axis with coordinates f(0,a) and directrix of the parabola is y = -a, the equation of parabola is:

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y² = -4 ax

x² = 4ay

x² = -4ay

y² = 4ax

Which of the following is a vector.

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distance

temperature

energy

acceleration

If sided of𝜟ABC are 16,20,and 33, then the value of the greatests angle to

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150𝜊 20'

132𝜊 35'

101𝜊 25'

160𝜊 50'

E-radius corresponding to < C is

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A matrix in which the number of rows is equal to the number of columns is called a

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Diagonal matrix

Rectangular matrix

Square matrix

Scalar matrix

If the vector 2i + 4j - 7k and 2i + 6j + xk are perpendicular then x = ?

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0

2

4

7

Write the first four terms of the sequence if a_n= (-1)ⁿn²

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-1, 4, -9, 16

1, -4, 9, 16

1, 4, 9, 16

None of these

If eccentricity of ellipse becomes zero then it takes the form of

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A parabola

A circle

A straight line

None of these

The set of all positive even integers is

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Not a group

A group w.r.t subtraction

A group w.r.t division

A group w.r.t multiplication

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The transport of a square matrix is a

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Row matrix

Column matrix

Square matrix

Null matrix

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π/ 4

π/ 6

π/ 3

2π/ 3

The distance between the points (0,0) and (x,y) is

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x²+ y²

x

y

Domain of y = scs x is

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All real numbers except π/2 + n*π

R

All negative integers

None of these

Cos 0° = ______

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-1

0

1

Undefined

The set {1, 2, 3, 4, ....} is called

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Set of Natural numbers

Set of whole numbers

Set of rational number

Set of irrational numbers

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none of these

Associative law of multiplication

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ab = ba

a(bc) = (ab) c

a(b+c) = ab + ac

(a + b)c = ac + bc

If sin (πcosθ) = cos (πsinθ), then which of the following is correct?

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A variable

A constant

0

None of these

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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none of these

Intersection of two parabolas

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parabola

Two points

Four points

Hyperobla

Ifθ= 60° then

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sinθ= 1/2

tanθ= cot 30°

θ=π/4

secθ= 4

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