Integration (CIE A Level Maths: Pure 1)

Exam Questions

2 hours28 questions
1
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3 marks

Integrate

(i)
2x,
(ii)
6x2,
(iii)
1 half x to the power of begin inline style 1 half end style end exponent.

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2
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4 marks

Evaluate

(i)
integral subscript 2 superscript 1 4 x space straight d x,

(ii)
integral subscript 0 superscript 3 open parentheses 9 x squared plus 4 x close parentheses space straight d x.

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3
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3 marks

Use calculus to find

      integral open parentheses 3 x to the power of 1 half end exponent plus 2 x to the power of negative 1 half space end exponent close parentheses straight d x.

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4a
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2 marks

Show that

      fraction numerator 3 x cubed plus 4 x to the power of 6 over denominator x squared end fraction

can be written as  3 x to the power of a plus 4 x to the power of b, where a and b are constants to be found.

4b
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3 marks

Hence find

      integral open parentheses fraction numerator 3 x cubed plus 4 x to the power of 6 over denominator x squared end fraction close parentheses space straight d x.

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5a
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3 marks

Integrate  5 x to the power of 4 plus 6 x squared plus 2 x plus 3.

5b
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3 marks

Given that space straight f left parenthesis x right parenthesis equals integral left parenthesis 5 x to the power of 4 plus 6 x squared plus 2 x plus 3 right parenthesis space d x and that the graph of space y equals straight f left parenthesis x right parenthesis  passes through the point (1 , 10), find an expression for straight f left parenthesis x right parenthesis in terms of x only.

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6
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4 marks

Evaluate

      integral subscript negative 3 end subscript superscript 4 open parentheses 2 k x plus 3 k x squared close parentheses space straight d x

giving your answer in terms of k.

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7
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4 marks

The curve C, described by the integral

      y equals integral open parentheses 2 x cubed minus x close parentheses space straight d x comma

passes through the point (2 , -2).

Show that space 2 y equals x to the power of 4 minus x squared minus 16.

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8a
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3 marks

By first writing 1 over x squared as x to the power of negative 2 end exponent, use calculus to show that

      integral subscript 1 superscript a 1 over x squared d x equals 1 minus 1 over a

where a space greater than space 1 is a constant.

 

8b
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2 marks

Find the value of the integral in part (a) when

(i)
 a space equals space 10 comma
(ii)
a space equals space 1000 comma
(iii)
a space equals space 1 space 000 space 000.
8c
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1 mark

By considering your answers to part (b), suggest what number the value of the integral in part (a) will approach as a space rightwards arrow infinity.

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This topic pack contains questions on the following:

  • Fundamental Theorem of Calculus

  • Integrating Powers of x

  • Definite Integration

  • Indefinite Integration

  • Reverse Chain Rule

  • Improper Integrals

1
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2 marks

Use calculus to find

      space space integral open parentheses 3 x squared plus 5 x plus 3 close parentheses space straight d x

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2
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2 marks

Evaluate

      space integral subscript 1 superscript 5 left parenthesis 4 x plus 6 x squared right parenthesis space straight d x

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3
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3 marks

Find the equation of the curve passing through the point (4, 64) and given by

        y equals integral open parentheses 3 minus 2 x plus 6 x squared close parentheses space straight d x

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4a
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2 marks

Show that

open parentheses 3 minus 2 x close parentheses squared equals 9 minus 12 x plus 4 x squared space

4b
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2 marks

Hence, or otherwise, work out

      integral open parentheses 3 minus 2 x close parentheses squared space straight d x

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5
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4 marks

Given

      integral subscript k superscript 5 open parentheses 2 x minus 1 close parentheses d x equals 20

find the value of the positive constant k.

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6a
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4 marks

Given  fraction numerator d squared y over denominator d x squared end fraction space equals 30 x and that when x equals 1 ,fraction numerator d y over denominator d x end fraction equals 17,  show that

      fraction numerator d y over denominator d x end fraction equals 15 x squared plus 2

6b
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3 marks

Find an equation for y in terms of x, given that when x equals 2, y equals 40.

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7a
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3 marks

Use calculus to show that

      integral subscript 1 superscript a 2 over x cubed d x equals 1 minus 1 over a squared

where a space greater than space 1 is a constant.

7b
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2 marks

By first considering the limit of 1 over a squared as a space rightwards arrow space infinity,  determine the value of

      integral subscript 1 superscript infinity 2 over x cubed d x

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1
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5 marks

Use calculus to find the value of

integral subscript 4 superscript 9 fraction numerator x squared space plus space 1 over denominator square root of x end fraction space straight d x

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2
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4 marks

Find the equation of the curve passing through the point (-2, 3) and given by

      y equals integral open parentheses 3 minus 2 x plus 4 over x squared close parentheses space straight d x

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3a
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3 marks

Using the binomial expansion, or otherwise, show that

      open parentheses 2 minus x close parentheses cubed equals 8 minus 12 x plus 6 x squared minus x cubed

3b
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3 marks

Hence, or otherwise, work out

      integral open parentheses 2 minus x close parentheses cubed space straight d x

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4
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5 marks

Given

integral subscript 1 superscript p left parenthesis 1 plus 1 over x squared right parenthesis space straight d x equals 15 over 4

find the value of the constant p, where p greater than 0.

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5
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5 marks

A function,space straight f open parentheses x close parentheses, has second derivative given by

      space space straight f apostrophe apostrophe open parentheses x close parentheses equals 6 left parenthesis x minus 2 right parenthesis.

Given that straight f open parentheses 3 close parentheses equals 20, and straight f apostrophe open parentheses 2 close parentheses equals 8 comma find straight f open parentheses x close parentheses.

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6a
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4 marks

Use calculus to find the exact value of each of the following improper integrals:

      integral subscript 7 superscript infinity 5 over x squared d x

6b
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4 marks

      integral subscript 0 superscript 18 fraction numerator 2 over denominator square root of x end fraction d x

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1
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3 marks

Use calculus to find

      integral open parentheses 2 square root of x plus 5 x to the power of 1 third end exponent close parentheses space straight d x

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2
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5 marks

Use calculus to find the value of

integral subscript 2 superscript 4 fraction numerator x cubed plus cube root of x over denominator 2 square root of x end fraction space d x

giving your answer correct to 3 significant figures.

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3
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4 marks

Find the equation of the curve passing through the point (4, -8) and given by

      y equals integral open parentheses fraction numerator 2 over denominator square root of x end fraction minus x minus 3 close parentheses space straight d x

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4a
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3 marks

Show that

      open parentheses 3 minus 1 half x close parentheses cubed equals 27 minus 27 over 2 x plus 9 over 4 x squared minus 1 over 8 x cubed

4b
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3 marks

Hence, or otherwise, work out

      integral open parentheses 2 open parentheses 3 minus 1 half x close parentheses close parentheses cubed space space straight d x

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5
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5 marks

Given

      integral subscript q superscript 4 q end superscript 5 x square root of x space straight d x equals 15 space 066

find the value of the constant q.

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6
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6 marks

A function, straight f left parenthesis x right parenthesis, has second derivative given by

       space straight f apostrophe apostrophe open parentheses x close parentheses equals 2 open parentheses 18 x minus 5 close parentheses.

Given that left parenthesis 2 x minus 1 right parenthesis and left parenthesis 3 x plus 2 right parenthesis are factors of straight f left parenthesis x right parenthesis, find straight f left parenthesis x right parenthesis.

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7a
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5 marks

Given that

      integral subscript p superscript infinity fraction numerator 3 over denominator x square root of x end fraction d x equals square root of 3 

where p is a real constant, find the value of p.

 

7b
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5 marks

Given that

      integral subscript 0 superscript 50 space fraction numerator q plus 3 x over denominator square root of x end fraction d x equals 750 square root of 2

where q is a real constant, find the value of q.

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