Question # 1

The exterior angle of the interior angle C of he quadrilateral whose vertices are A(5,2),B(-2,3),C(-3,-4),D(4,-5) is

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30°

60°

45°

90°

The number of terms in the expansion of (a + x)¹²is

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13

12

11

10

Number of ways of writing the letters of WORD taken all at a time is

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24

4

12

6

If one root of 5x2 + 13x + k = 0 be the reciprocal of the other root the value of k is

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0

2

1

5

If x³+ ax²- a²x - a³is divided by x + a, then the remainder is

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0

a³

2a³

-2a³

The maximum value of the quadratic function f(x) = -2x2+20x,is

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4

3

50

7

The identity element with respect to subtraction is

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0

1

-1

Does not exist

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

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24

31

26

23

60° = ______

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The points A(3,1),B(-2,-3),C(2,2) are vertices of an (an)

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Right triangle

Equilateral triangle

Isosceles triangle

Scalene triangle

nCn-r is equal to

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n!

n-1Cr

nCr

None of these

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28 / 81

28 / 243

81 / 28

243 / 82

Q∪ Q' =

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Q

Q'

N

R

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Orthogonal

Involutary

Idempotent

Nilpotent

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real number

complex number

rational number

irrational number

∫ x cos dx is equal to :

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x cos x + sin x

cos x + x sin x

x cos x + x sin x

x sin x + cos x

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The value of sin [ arc cos (-1/2)] is

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The expansion of (1 + 2x)^-2is valed if

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| x | < 1/2

| x | < 1

| x | < 2

| x | < 3

The distance between the points (1, 2) and (2, 1) is

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3

6

Sum of first n terms of an arithmetic series is

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The null vector is regarded to be perpendicular to

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Every vector

In some cases

Both a b

None

The coefficient of x¹⁰in the expansion (x³+3/x²)¹⁰is

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1700

17023

17027

17010

The unit vector along x-axis is

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none of these

The distance of the point (2, -3) from x-axis is

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-2

-3

2

3

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sin^-1[-1/2] = ______

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