Question # 1

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

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Images

Pre-images

ranges

Parameters

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0

3

9

-3

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2

-1

8

not defined

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

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dependent variable

independent variable

constant

none of these

If f(x)= x³ then f(-2) is

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-2

-4

-8

8

The period sin²θis

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π²

π

2π

π/2

A function in which the variable appears as exponent is called:

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An identity function

A logarithmic function

an exponential function

A rational function

If f(x) = x³- 2x²+ 4x -1 then f(2) is

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7

-16

16

-9

If f(x) = x³- 2x²+ 4x -1 then f(0) is

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0

1

-1

none of these

f(x) = 3x⁴ -2x² + 7 is:

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an even function

an odd function

an even and implicit function

neither even nor a odd

If f(x) = x³- 2x²+ 4x -1, then f(-2) = ?

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0

-25

5

45

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

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0

1

-1

2

If f(x) = x²then f(-2) is

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-2

2

4

-4

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image

pre-image

constant

none of these

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0

1

1/2

f(x) = 2^x+ 3 . 2^2x+ 5 is

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trigonometric function

algebraic function

exponential function

logarithmic function

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0

-4

none of these

A function from X to X is denoted as

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f : X to Y

f : Y to Y

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f(x) = 1 is

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identity function

constant function

linear function

quadratic function

A function F(x) is called even if

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F(x) = F (-x)

F(x) = F(-x)

F(x) = -F(x)

2F(x) = 0

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2

4

8

12

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sin h x

cos h x

tan h x

cot h x

The set of points {(x,y)|y = f(x),∀x∈} is called

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Relation

Graph of f

Function

All are correct

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(1,7/3)

(1, 7/5)

(1, 11/7)

(1, 3/5)

Inverse of the function y-10x is

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y=logx

y=lnx

x=10y

f(x) = 2x²+ 3x + 5 is a

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trigonometric function

algebraic function

exponential function

logarithmic function

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

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