Question # 1

In common logarithm the base is

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1

0

10

e

if the value of the sphere, v =4/3πr²^, then the which of the following statement is true?

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r is the function of v

v is the function ofπ

π is independent variable

None of these

If the function y=2x -3, what is the preimage of 11?

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11

7

5

2

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If f (x) = 2x+1 then fof (x) = _______;

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4x+3

2x +3

4x +1

None of these

x = secθ,y = tanθ are the parametric equations of

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Circle

Hyperbola

Ellipse

parabola

sin h x = ___________

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A function from X to X is denoted as

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f : X to Y

f : Y to Y

A rule that assigns to each elements x in X a unique element y in Y is called a ____________

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domain

range

function

none of these

The domain of the function x/x² -4 is given by

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R

R + 2

[R - (+2)

R-4

f(x) = 2x²+ 3x + 5 is a

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trigonometric function

algebraic function

exponential function

logarithmic function

f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

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0

-2

1

4

______________ invented a symbolic way to write the statement "y is a function of x" as y= f(x)

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Leibniz

Newton

Euler

None of these

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0

1

-1

none of these

A function of the form p(x)/Q(x) is called:

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Rational function

Logarithmic function

Exponential function

Hyperbolic function

If f(x) = -x³then f(-2) is

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-2

-4

-8

8

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π

2π

π/2

None of these

The curve f(x,y) = 0 has a central symmetry if

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f(-x,-y)=f(x,y)

f(x,-y)=f(x,y)

f(-x,y)=f(x,y)

f(-x,-y)≠f(x,y)

The largest possible domain of the function:

y=√(x ) is:

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(0 ,∞)

12

(3 , 12)

( 3 ,∞)

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If f(x) = x³- 2x²+ 4x -1 then f(2) is

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7

-16

16

-9

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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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0

1

8

∞

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3/4

r

v

None of these

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range of f

domain of f

both (a) and (b)

none of these

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-1

1

2

-2

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f(x) = x²

f(x²) = x

f(x) = x

none of these

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

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