Question # 1

If origin is the mid point of (a, -3) and (-5, b) then

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a = -5 , b = -3

a = 5 , b =3

a = -5 , b = 3

a = 5 , b = -3

The position vector of a point (x, y) in xy plane is

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none of these

The set of integer is

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Finite group

A group w.r.t addition

A group w.r.t multiplication

Not a group

The probability that a person A will be alive 15 years hence is 5/7 and the probability that another person B will be alive 15 years hence is 7/9. Find the probability that both will be alive 15 years hence

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4/63

5/9

45/49

None of these

The third term of the sequence a_n= (-1)^n-1(n-7) is ______

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8

4

-4

8

The set of the first elements of the orders pairs forming a relation is called its

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Relation in B

Range

Domain

Relation In A

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3.5+5.4=5.4+3.5 =8.9 this property of addition is called

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additive identity

assoclative property

commulative property

closure property

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(2x4)

(2x7)

(2x3)

(7x2)

x = -1 is in the solution of the inequality

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x + 5 < 0

2x + 3 < 0

x > 0

2x + 3 > 0

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