Question # 1

Domain of cosh x is

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R

R -{0}

[1,∞)

[0,∞)

The period of the function f(x) = sin⁴x + cos⁴x is

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π

π/2

2π

None of these

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

1

8

∞

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

The domain of f(x) = log x is

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[0,∞]

(0,∞)

[0,∞[

[∞,∞]

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

if f(x) = x³ -3x² +5x -1, then f(-√2)=

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7+7√2

3+3√2

-7-7√2

-3-3√2

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2

4

8

12

f(x) = ax + b will be an identity function if

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a = 1 , b = 1

a = 1 , b = 0

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range of f

domain of f

both (a) and (b)

none of these

The range of inequality x + 2 > 4 is

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(-1, 2)

(-2, 2)

(1,∞)

None

If f(x) = (-x)²then f(-2) is

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0

2

-4

4

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

Graph of the question x²+ y²= 4 is

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A circle

An ellipse

A parabola

A square

If f(x) = x²then f(0) is

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0

1

2

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

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1/8

1/2

1/4

1/6

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-1

1

2

-2

f(x) = sin x is:

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an odd function

an even function

an implicit function

an exponential function

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

The area of circle of unit radius =

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0

1

4

π

The domain the function : f(x) = x² is given by

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R

Set of all non-negative Real numbers

R^-1

None of these

f(x) = C is

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identity function

constant function

linear function

quadratic function

If f(x) = x²- x then f(-2) is

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4

6

2

0

If f(x) = x + 1 then f(z²-1) is

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z²

z²+ 2

z²- 2

none of these

cos h²x + sin h² x

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an even function

an odd function

an even and implicit function

neither even nor a odd

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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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