Question # 1

f(x) = 2x²+ 3x + 5 is a

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trigonometric function

algebraic function

exponential function

logarithmic function

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Domain of y = scs x is

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All real numbers except π/2 + n*π

R

All negative integers

None of these

Sin h^-1x = _________

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images

pre-images

constants

none of these

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0

3

9

-3

The period sin²θis

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π²

π

2π

π/2

If a variable y dependents on a variable x in such a way that each value of x determines exactly one value of y, then we say that

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x is function of y

y is a function of x

y is independent variable

x is real valued function

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}

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

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If f(x) = x²then f(-2) is

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-2

2

4

-4

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0

1

2

1/2

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πis the period of the function

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|sin x| + |sin x|

sin⁴x + cos x

sin (sin x) + sin (cos x)

None of these

Inverse of the function y-10x is

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y=logx

y=lnx

x=10y

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

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[0 ,∞ )

(0 ,∞)

(-∞ ,3]

[0,∞)

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0

1

-1

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

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tan h x = _________

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Domain of cosh x is

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R

R -{0}

[1,∞)

[0,∞)

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(1,7/3)

(1, 7/5)

(1, 11/7)

(1, 3/5)

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If y=f(x) is a function then x is called

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dependent variable

independent variable

constant

none of these

In the function f: A⟶B, the elements of a are called

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Images

Pre-images

ranges

Parameters

A function from X to X is denoted as

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f : X to Y

f : Y to Y

A function f is said to be an even if f(-x) =

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0

1

f(x)

-f(x)

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x = f(y)

y = f(x)

x = f(x)

y = f(y)

The range of the function f : x→ y is defined by

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{x| y = f (x) ∀x∈ X ∧y∈y}

{(x,y) |y = f (x)∀x∈ X}

{y|y = f (x) ∀x∈ X ∧y∈y}

Y

If f(x) = x²- x then f(2) is

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4

6

2

0

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

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