Question # 1

If for two events A and B , P(A∪B)=1,then events A and B are

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Certain events

Mutually exclusive

Complementary events

Independent

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Associate law of addition

Commutative law of addition

Additive identity

Closure law of addition

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Circumcentre of the triangle, whose vertices are (0, 0), (6, 0) and (0, 4) is

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(2, 0)

(3, 0)

(0, 3)

(3, 2)

The second degree equation 2x2 -xy+ 5x -2y +2 =0 represents

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Circle

Hyperbola

Ellipse

Pair of straight lines

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If distance of (a,b) from origin is 5 then

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a²+ b²=5

a = 5

b = 5

Multiplying each side of an inequality by (-1) will:

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Not effect

Change the sign

Become zero

Not defined

i² =

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1

2

-1

0

The distance between the points (0,0) and (x,y) is

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x²+ y²

x

y

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¹⁰C₆

¹⁰C₅

¹⁰C₄

None

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