A Level Maths: Small Angle Approximations Revision Notes

Use the approximations sin(x) ~ x, cos(x) ~ 1 – x^2/2, and tan(x) ~ x (with x in radians) to simplify expressions for small angles.

To put these notes into practice, try our A Level Maths exam questions by topic, which include OCR and Edexcel material with full mark schemes.

When you’re ready, move on to full A Level Maths past papers to practise under exam conditions.

Select Resource:
← Previous Solving Equations With Reciprocal Trig Functions Next Inverse Trig Functions →