A Level Maths: Rcos(x+a) and Rsin(x+a) Revision Notes

Rewrite a*cos(x) + b*sin(x) in the form R*cos(x +/- alpha) or R*sin(x +/- alpha). Use this to solve equations and find max/min values.

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 Double Angle Formulae Next Reciprocal Trig Functions →