Trigonometry: Reduction Formulae and Co-ratios

Find out how to use the cast diagrams to simplify trigonometric expressions. Also find out how to turn sin into cos and cos into sin, and how to deal with angles that are too big or too.. negative for your liking.

[Cusichaba]

Great narration! Helped a lot, thanks guys

[nathandutoit]

I heard aggg.. and knew it was a South African 🤣 thanks for the help 👌

[henockpeterhp]

Thank u very much 🙏🙏🙏🙏🙏🙏🙏🙏🙏....💞💞💞💯


👌👌👌👌👍👍👍👍