Skip to main content

Back to the full dot-point answer

ScotlandMathsQuick questions

Relationships and Calculus

Quick questions on The addition formulae and the wave function - SQA Higher Maths

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
Show answer
Expand sin⁡(x+30∘)\sin(x + 30^\circ) using the addition formula. [2 marks]
What is q2?
Show answer
Write sin⁡x+3cos⁡x\sin x + \sqrt{3}\cos x in the form ksin⁡(x+α)k\sin(x + \alpha). [3 marks]

Have a question we have not covered?

This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.

All MathsQ&A pages