Question # 1

The cube roots of 8 are

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In (x + iy) x is the known as

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Imaginary part of complex number

Real part of complex number

Complex number

None of above

Two coins are tossed twice each. The probability that the head appears on the first toss and the same forces appear in the two tosses is

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1/4

1/2

1/3

1/7

If a, b, c are the measures of the sides of a triangle then

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If a,b c are sides of a triangle taken in order then a x b =

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b x c

b x a

cxa

Both a & b

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There are ______ basic techniques for solving a quadratic equation

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Two

Three

Four

None of these

w²⁸+ w³⁸= ______

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0

1

w

-1

(0,0) is in the solution of the inequality

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x + y > 3

x - y > 2

3x + 2y > 5

3x - 2y < 2

If a,β are the roots of the equation x2 + kx +12 = 0 such that a - β = 1, the value of k is

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0

±1

±5

±7

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Sec^-1x =

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Cos^-11/x

cosec^-11/x

Cos^-1(-x)

Tan^-1x

The point of concurrency of the right bisectors of the sides of a triangle is called

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incentre

circum center

e-center

centroid

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n!/(n-1)!=

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n

n!

(n-1)!

0!

If the circle x²+ y²+ 2gx +2fy + c = 0 passes through the origin then

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c = 0

c = -1

c = -2

c = 1

If you are looking a bird in the tree from the ground then the angle formed is called angle of______;

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Elevation

Depression

Right angle

None of these

Name the property used in 4 + 9 = 9 + 4

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Associative property of addition

Commutative property of addition

Distributive property

Additive identity

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

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The number of 5-digit number that can be formed from the digits 1,2,4,6,8, when 2 and 8 are never together is

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72

48

144

20

The roots of px2 - (p-q)x-q=0 are

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equal

Irrational

Rational

Imaginary

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The integral of 3x⁵dx is:

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15 x⁴

x⁶/2

1/6x⁵

x⁵/ln3

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

A and B be two square matrices and if their inverse exist the (AB)-1 =

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A-1 B-1

AB-1

A-1B

B-1A-1

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π

2π

π/2

None of these

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none of these

The symbol ______ shall be used both for equation and identity

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Range of cotθis

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(+∞to -∞)

(-1 to +1)

(-5 to +5)

Set of even numbers only

i³=

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-1

i

-i

1

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