Question # 1

The fifth term of the sequence a_n = 3n - 2 is

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3

-3

13

-13

AreCot √3 =?

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π/2

π

2π

π/6

If x² +y² = 4, Then dy/dx =

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2x +2y

4 -x²

-x/y

y/x

A relation in which the equality is true only for some values of the unknown variable is called

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An identity

An equation

A polynomial

Inverse function

The Domain of f(x) = log x is

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[0,∞]

(0, ∞)

[0,∞[

[∞ ,∞]

If -1 < x < 0, which of the following statement must be true?

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x < x² < x²

x < x³ < x²

x² < x³ < x

x²< x < x³

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

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-x

does not exist

1/x

0

The range of inequality x + 2 > 4 is

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(-1,2)

(-2,2)

(1,∞)

None

If Cosθ =0, Then θ=

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nπ/2

(2n + 1)π/2

(2n - 1)π/2

(n ±1)π/2

If the sum of the roots of (a + 1)x² + (2a + 3)x + (3a + 4) = 0 is -1, then product of the roots is

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Commutative law w.r.t multiplication

Associative law w.r.t addition

Distributive law w.r.t addition

Multiplication of a scalar with the matrix

The equation of the normal to the circle x² + 2² = 25 at (4,3) is

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3x -4y =0

3x -4y= 5

4x + 3y=5

4x - 3y =25

If Z₁ = √-36, Z₂=√-25, Z₃= √-16, then what is the sum of Z₁, Z₂ and Z₃ ?

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√3 I

√7

-2-1

√5

Derivative of strictly increasing function is always

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Zero

Positive

Negative

Both A and B

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NAT I Engineering Mathematics MCQs With Answers

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