Question # 1

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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Same as the original determinant

Additive inverse of the original determinant

Both A and B

Adj of the original matrix

A point of a solution region where two of its boundary lines intersect is called

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Boundary

Inequality

Half plane

Vertex

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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True

False

Fallacious

Some times true

For any set X, X∪X is

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15

15i

-15i

-15

ωⁿ = ?, when n = 3k

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0

ω

1

1 / ω

If f(x) : A → B and g (x) : A → B then Dom [f(x) + g(x)] is

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Dom f(x) ∩ Dom g (x)

Dom f(x) ∪ Dom g(x)

[Domf(x)]² - [Dom g(x)]²

[Dom g(x)]²-[Domf(x)]²

Ab > 0 and a > 0 then

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a > b

a < b

a = b

None

Cos 315° =

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0.707

0.5

1

0

ω⁸⁸ = ?

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

A and B are singular matrices

A and B are equal

AreCot √3 =?

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π/2

π

2π

π/6

What is the domain of y = Cot^-1 x?

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Set of irrational numbers only

Set of all real numbers

Set of integers only

Set of complex numbers only

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NAT I Engineering Mathematics MCQs With Answers

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