Question # 1

The curves y =x², y= x interest at

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(0,0) ,(1,1)

(2,4)

(0,),(2,4)

(0,3),(-1,1)

The set {1, -1, i, -i}, form a group under

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addition

multiplication

subtraction

None

Area of ΔABC=

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ab sin α

1/2 ab sin α

1/2 ac Sin γ

1/2 ac Sin β

If sinθ = 1 then θ =

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2nπ +π/2

2nπ

2π +n

Nπ +π/2

Which of the following is not defined?

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Arcsin 1/9

ArcCos (-4/3)

Arctan 11/12

Arccot (-4)

If you looking a high point from the ground then the angle formed is

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Angle of elevation

Angle of depression

Right angle

Horizon

Period of Sin 2x =

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π

4π

2nπ

2π

0 (zero) is

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A irrational number

A rational number

A negative integer

A positive number

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

Two matrices A and B are conformable for multiplication (AB) if and only if

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Addition

Multiplication

Division

Subtraction

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NAT I Engineering Mathematics MCQs With Answers

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