Question # 1

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0

-1

1

2

G is geometric mean between a and b if a, G, b is

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A.P.

G.P.

H.P.

None of these

The polar form of complex number x ≠ I y =

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r cos θ+ r sin θ

r cos θ+ is sin θ

cos θ+ r sin θ

i cos θ+ i sin θ

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A variable

A constant

0

None of these

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The minimum value of the quadratic function f(x) = x2 +6x -2, is

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11

6

-11

13

(a +bi) -c (c +di) =

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(a +b) = (c +d)

(a +c) + i(b +d)

(a -c) + (c -d)i

(a -c) +(b -d) i

An open sentences formed by using the sign of equality '=' is called ______

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An identity

An equation

A polynomial

None of these

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0

1

13

sec (-360°) = ______

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0

1

2

3

There is no integer n for which 3ⁿis

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Odd

even

Natural

Prime

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

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sin4(ax+b)

a4sin(ax+b)

a4cos(ax+b)

None of these

The locus of the point of intersection of tangents to an ellipse at two points, sum of whose eccentric angles is constant is

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A parabola

A circle

An ellipse

A st. line

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

6 is

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A prime integar

An irrational number

A rational number

An odd integer

For the equation |x²| + |x| -6 =0, the roots are

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One and only one real number

Real with sum one

Real with sum zero

Real with product zero

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I quadrant

II quadrant

III quadrant

IV quadrant

Fifteen girls compete in a race. The first three places can be taken by them in

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3! ways

12! ways

15 x 14 x 13 ways

42 ways

If the flag-staff 6 meters high placed on the top of a tower. Makes the shadow 2√3 m on the ground, then the angle of elevation of the sun is

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30^ο

35^ο

45^ο

60^ο

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1 / 2

1 / 3

1 / 4

None of these

The direction cosines of y-axis are

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1, 0, 0

0, 1, 0

0, 0, 1

1, 1, 1

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What is the period of 6 sin x=?

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π

-π

π/2

2π

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Every relation, which can be represented by a linear equation in two variables, represents a

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Relation

Cartesian product

Function

Graph

Trival solution of homogeneous linear equation is

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(0, 0, 0)

(1, 2, 3)

(1, 3, 5)

a.b and c

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

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1700

17023

17027

17010

By expressing cos 113° in terms of trigonometrical ratios, answer will be

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− cos 76° = -0.7093

− cos 65° = -0.4258

− cos 67° = -0.3907

− cos 62° = -0.8520

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