Question # 1

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0

1

The value of i⁴ⁿ⁺¹

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1

-1

i

i²

The equation x2+ y2- 8x+ 6y+ 25= 0 represents

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A circle

A pair of straight lines

A point

None of these

If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is

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Every prime number is also

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Rational number

Even number

Irrational number

Multiple of two numbers

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-1

0

1

None of these

Such fraction which can not be written in the form ofp⁄q where p,q and q≠ 0,such fractions are called.

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Fractinal numbers

Rational Numbers

Even Numbers

Whole Numbers

The property used in -3 <-2 ⇒0 <1

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Commutative property

Additive property of inequality

Additive inverse

Additive identity

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k3

0

3k

k6

A matrix with a single column is called

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Column matrix

Row matrix

Identity matrix

Null matrix

The statement that a group can have more than one identity elements is

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True

False

Ambiguous

Some times true

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The expansion of (1 - 3x)^-1is valid if

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| x | < 1

| x | < 3

| x | < 1/3

None of these

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The angle of depression of a point situated at a distance of 70 meters from the base of a tower is 45°. The height of the tower is

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70 m

85 m

35 m

None of these

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6

20

0

A - B = ______

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If A is singular then |A| = ______

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1

0

2

None of these

The eccentricity of the conic 9x²- 16y²= 144 is

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4/5

5/4

4/3

3/4

Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is

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k = 9

k = ±9

k=-9

k=11

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Period of 3 sin x is ______

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For a square matrix A, if A = At, then A is called

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Matrix

Transpose

Symmetric

Non-symmetric

f(x) = 1 is

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identity function

constant function

linear function

quadratic function

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-2

-1

1

2

Co-ordinate of a point on the parabola y² = 8x whose focal distance is 4 are:

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(2 , 4)

(-2 ,-4)

(-2, 4)

(2,-4)

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(7,9) +(3,-5) =

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(4,4)

(10,4)

(9,-5)

(7,3)

The third term of a G.P. is the square of first term. If the second term is 8, then the 6th term is

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120

124

128

132

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