This study notes covers Worked Example 1 within Exact Trig Values for GCSE Mathematics. Revise Exact Trig Values in Geometry & Measures for GCSE Mathematics with 14 exam-style questions and 4 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 4 of 6 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 4 of 6
Practice
14 questions
Recall
4 flashcards
Worked Example 1
Calculate the exact value of sin 60° + cos 60°.
Solution
From the exact values table:
sin 60° = √3/2
cos 60° = 1/2
sin 60° + cos 60° = √3/2 + 1/2
= (√3 + 1)/2
Answer: (√3 + 1)/2