Question # 1

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0

1

2

1/2

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0

3

9

-3

The domain of y =√(x^2-9) is

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R

(0 , +∞)

(-∞ , -3 )∪ (3 , +∞)

(0 ,∞)

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

Which is an explicit function

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y = x²+ 2x - 1

x²+ xy + y²= 2

x²+ y²= xy + 2

All are

If f(x) = x²-x then f(1) is

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0

1

2

3

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If y is an image of x under the function f, then we write

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y = f(x)

x = f(y)

y = x

none of these

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sin h x

cos h x

sec h x

cosec h x

xy= 2 is:

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a constant function

an identity function

an improper function

implicit function

The period sin²θis

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π²

π

2π

π/2

A function from X to X is denoted as

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f : X to Y

f : Y to Y

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

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0

1

-1

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

If f(x) = x²then f(0) is

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0

1

2

none of these

f(x) = sin x is:

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an odd function

an even function

an implicit function

an exponential function

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If f(x) = x³- 2x²+ 4x -1 then f(0) is

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0

1

-1

none of these

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

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0

1

f(x)

-f(x)

The only function which is both even and odd is

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f(x) =α

f(x) = x

f(x) =0

Both A & B

Sin h^-1x = _________

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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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-2

-1

1

2

The function discontinuous at x = 0 is (1) tan x (II) cot x (III) sec x (iv)cosec x)

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I & III

I & IV

II & IV

II & III

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2

4

8

12

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0

1

-1

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

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π

π/2

2π

None of these

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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