How to show sinα - sinβ = 2cos((α+β)/2)sin((α-β)/2)
Vložit
- čas přidán 5. 09. 2024
- In this video I work through how to show:
sinα - sinβ = 2cos((α+β)/2)sin((α-β)/2)
I use two compound angle formulas plus a neat trick to go from α and β to a combination of (α+β)/2 and (α-β)/2.
If you are struggling with a math question and need some help, try heading to my website: www.tickboom.study ... You simply share a photo of the question you are struggling with, I record a video of me working out a solution, and then I send you a link to the video. It is 100% free and easy to use, so why not give it a try the next time you are stuck.
#tickboom #highschoolmath #mathcoaching #math #maths #mathematics