Question # 1

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One-one but not onto

One-one and onto

Onto but not one-one

Neither one-one nor onto

f(x) = C is

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identity function

constant function

linear function

quadratic function

If f(α) = b2 and g (c) =d where c=b2 then (gof)(a) is

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α

c

b

d

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π

2π

π/2

None of these

Express the perimeter P of square as a function of its area A?

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P = 4√A

P =√A

P = 2A

P =π√A

Graph of the question x²+ y²= 4 is

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A circle

An ellipse

A parabola

A square

Which is an explicit function

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y = x²+ 2x - 1

x²+ xy + y²= 2

x²+ y²= xy + 2

All are

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sin h x

cos h x

tan h x

cot h x

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A function from X to Y is written as

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f : X to Y

f : Y to Y

The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

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-2

-1

1

2

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0

1

-1

none of these

Which of the following function form 1 to itself are bi-jective

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F(x) = x + 3

F(x) = x⁵

F(x) = 3x + 2

F(x) = x²+ x

If f(x) = tan x then f(0) is

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0

1

1/2

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0

1

1/2

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0

-4

none of these

Which is not included in the domain of cos^-1x

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0

1

-1

2

xy= 2 is:

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a constant function

an identity function

an improper function

implicit function

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sin h x

cos h x

tan h x

cot h x

If a tangent line touches the function y = f (x) in more than one point then y = f (x) is

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Periodic

Surjective

Bijective

Injective

An even function is symmetric about the line

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y = x

x = 0

y = -x

y = 0

The function f : x→ y defined as f (x) =α∀x∈ X,α∈ y is called

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Constant function

Polynomial function

Identity function

Linear function

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If f(x) = -x²then f(-2) is

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-2

2

-4

4

What is range of the function g (x) =|x-3|?

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[0 ,∞ )

(0 ,∞)

(-∞ ,3]

[0,∞)

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f(x) = 2x²+ 3x + 5 is a

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trigonometric function

algebraic function

exponential function

logarithmic function

If f (x) is defined and continuous then f (x) is always

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Rational function

Trigonometric function

Logarithmic function

All are correct

Domain of cosh x is

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R

R -{0}

[1,∞)

[0,∞)

tan h x = _________

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ECAT Pre General Science Mathematics Chapter 17 Functions and Limits Online Test MCQs With Answers

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