Hacking the Unit Circle on the TI 84 Plus CE Graphing Calculator

Why memorize the unit circle when the exact values are at your fingertips on your calculator?? Watch this video for a quick and dirty way to summon up the exact values of trigonometric ratios. Feel free to pause the video frequently in order to pick your jaw up off the floor. And be sure to watch to the end in order to know what to do when your exact value ends up being negative!

[@magnatemagic7391]

My Final Trig Exam today and I have been blessed by this video, you don't know how helpful this is😭

[@iamhappymoth]

thank you for teaching me this valuable lesson, your highness. 💕🙏🙏

[@fredkong6671]

Any time, Grasshopper. Any time.

[@noahsnyder8239]

This is excellent content. For such a simple question there are not enough answers on the web for this. Thank you for the help.

[@fredkong6671]

Thank you. Glad it helped!

[@A.M.A-Attarch]

Legend, this is 100% going to save me during my complex numbers exam. tysm!

[@fredkong6671]

Glad it helped!

[@helgamacdoogleson2700]

can you use the TI-84 to mark tests 🤨

[@fredkong6671]

Working on it.... will get back to you.

[@simpleman283]

Barack Obama, how could you think it would be a good idea to fine people that could not afford Obamacare. You fined me over $700 that one year. How is that going to help me get coverage?

[@benimubenesha3572]

😂I can’t believe this , u just save my life 😅 thank you

[@fredkong6671]

Glad you found the video useful!

[@simpleman283]

That is good information, I really like it.
I can even do that on my TI 30XllS

[@fredkong6671]

Yes, this strategy is doable on any calculator. It helps if the calculator can convert decimals to fractions, but it’s not absolutely necessary!

[@donnasamer-du7rs]

thank you!!!!!!!!!!!!!!

[@JessicaDavis-i9k]

Godsend!

[@fredkong6671]

Very glad you found it helpful!

[@ky3ma439]

Very nice

[@fredkong6671]

Thanks for your support!

[@JorgenJorgensenSonofJorgen]

First

[@fredkong6671]

Thanks, Brayden!

[@daddyzebra]

omg you’re so smart

[@fredkong6671]

Aww shucks.