Question # 1

∀a,b ε R, ab = be is a

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Commutative law of multiplication

Closure law of multiplication

Associative law of multiplication

Multiplicative identity

The two different parts of the hyperbola are called its

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Vertices

Directrices

Nappes

Branches

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For an A.P common difference d

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Can be zero

May or may not zero

Cannot be zero

None of these

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y/x

x/y

y/z

None

If nis positive integers, then 2ⁿ>2n+1, only when

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n≤ 3

n≥ 3

n≤ 2

n≤ 1

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Vector additon is:

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Commutative

Associative

Commutative and Associative

None of these

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are real no

both are not real

are imaginary no

both are imaginary

Only one of the root of ax2 + bx + c =0, a≠ 0 is zero if

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c = 0

c = 0,b≠ 0

b = 0,c = 0

b = 0,c≠ 0

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