Question # 1

If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is

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Same as the original determinant

Additive inverse of the original determinant

Both A and B

Adj of the original matrix

If a statement S(n) is true for n = 1 and the truth of S(n) for n + K implies the truth of S(n) for S(n) = K + 1, then S(n) true for all

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All Real numbers

All integers

Positive integers

All complex numbers

If A = (3, 8) and B = (5, 6), then the distance between A and B is

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2

1

6

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0

-2

1

4

The length of rectangle is twice as much as its breadth. If the perimeter is 120 cm, the length of the rectangle is

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10 cm

20 cm

30 cm

40 cm

In which quadrant is the solution of the equation sin x - 1 = 0

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II quadrants

II and III quadrants

III and IV quadrants

I quadrant

The nth term in G.P 3,-6,12,....................... is

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3(-2)^n-1

2(-2)ⁿ⁺¹

3(-2)ⁿ

4(-2)^n-1

If P(E) is the probability that can event will occur, then P(E) =

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1

0.5

2

0

The constant distance of all points of the cirlce from its centre is called the

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Radius of the circle

Secant of the circle

Chord of the circle

Diameter of the circle

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1

2

3

4

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15

60

90

20

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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None

Which is in the solution set of 4x - 3y < 2

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(3, 0)

(4, 1)

(1, 3)

None

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