Question # 1

A square matrix A = [aij] is upper triangular when

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cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

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The maximum value of sinθcosθis

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1

1/2

1/4

1/6

If the domain of the function f: x⟶ 2x³+ 1 is {-1,2,3}, the range of the function is

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{3,2,5}

{1,3,9}

{-1,-2,-3}

{3,9,19}

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

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Which of the following us a scalar

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displacement

velocity

acceleration

density

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range of f

domain of f

both (a) and (b)

none of these

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