Question # 1

The point of concurrency of the angle bisectors of a triangle is called

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incentre

circumcentre

e-centre

centroid

If z₁ = 1 + 2i, z₂ = 3 + 4i then

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z₁ > z₂

z₁ = z₂

z₁ < z₂

None of these

How many signals can be given by 5 flags of different colours, using 3 flags at a time

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120

60

24

15

G = {e, a, b, c} is an Abelian group with e as identity element The order of the other elements are

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2,2,2

3,3,3

2,2,4

2,3,4

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The element range of sequence are called

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Series

progression

Members

Terms

A Series which does not coverage to a Unique sum is called

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Harmonic Series

Oscillatroy Series

Arithmetic Series

None of these

The domain of the function x/x² -4 is given by

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R

R + 2

[R - (+2)

R-4

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1

2

0

4

A combination lock on a suitcase has 3 wheels each labeled with nine digits from 1 to 9. If an opening combination is a particular sequence of three digits with no repeats, the probability of a person guessing the right combination is

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1 / 500

1 / 504

1 / 252

1 / 250

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The matrix A = [aij]mxn with m≠n is

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Rectangular

Symmetric

Square

None

The term involving x4 the expansion (3-2x)7 is

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217 x4

15120x4

313x4

-25x4

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Name the property used in 1000 x 1 = 1000

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additive inverse

multiplicative inverse

additive identity

multiplicative identity

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6x + 2 + c

6x + x²+ c

6x³+ x²+ x

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additive property

multiplicative property

additive identity

multiplicative identity

The zero vector is regarded to be parallel to

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Every vector

Is some cases

Both a,b

None

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0

1

-1

none of these

The unit vector along y-axis is

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none of these

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k3

0

3k

k6

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square root function

identity function

linear function

quadratic function

Total number of subsets that can be formed out of the set {a,b,c} is

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1

4

8

12

The vertex of the equation y² = 4ax is:

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(2, -2)

(1,1)

(0 , 0)

(2 , 2)

Any horizontal line divided the plane into

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Left half plane

Upper and lower half planes

Infinite number of horizontal liens

None of these

If y=sin(ax+b) then y4=________:

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sin4(ax+b)

a4sin(ax+b)

a4cos(ax+b)

None of these

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If distance of (a,b) from x-axis is 2 then

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a = 2

b = 2

a = b

b = 4

Which is not included in the domain of cos^-1x

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0

1

-1

2

Write down the power set of {9, 11}

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