CalculusAdditional / Further Maths

Integration as reverse differentiation

Find an antiderivative and explain the constant of integration.

  • Integration finds a function whose derivative is the expression given.
  • If , then .
  • Add because every constant has derivative zero. Check by differentiating your answer.

Example 1

Integrate with respect to .

This derivative matches the expression given.Any added constant has derivative zero.

Example 2

Integrate with respect to .

This derivative matches the expression given.Any added constant has derivative zero.

Your turn

Question 1

Integrate with respect to .

Check answer
This derivative matches the expression given.Any added constant has derivative zero.
Question 2

Integrate with respect to .

Check answer
This derivative matches the expression given.Any added constant has derivative zero.
Question 3

Integrate with respect to .

Check answer
This derivative matches the expression given.Any added constant has derivative zero.
Question 4

Integrate with respect to .

Check answer
This derivative matches the expression given.Any added constant has derivative zero.
Question 5

Integrate with respect to .

Check answer
This derivative matches the expression given.Any added constant has derivative zero.