Original post by Zeus64
You can use the double angle formula: cos(2x) = 2cos^2(x) - 1 and rearrange to make cos^2(x) the subject.
Hope this helps.
Hope this helps.
oh okay, thank you
Quick Reply
Related discussions
- GCSE Edexcel Maths - trigonometric ratios of angles between 0 and 360
- Applied Calculus Help
- AQA A-level Further Maths Required Trig Functions?
- A Level Maths Integration
- pure 3 trig is killing me
- Help urgent maths
- Further maths: Further Calculus
- trigs graph and solution
- Struggling with Year 2 pure maths
- maths help
- Help how do I get this answer maths
- AS level physics forces and motion question
- what are all the trig formulae i need to remember ?
- Maths trig problem
- AS Maths edexcel 2023
- Advanced mathematics
- Maths Question
- Cuboid questionpaper1highermathsedecell
- Topics list for Paper 4 OCR maths gcse
- edexcel maths a level
Latest
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
