In this video I use the cos(x - y) identity which I proved in my earlier video to derive a very useful trigonometric identity for sin(x + y) and sin(x -y).

Download video notes:

Watch video on:

3Speak:
Odysee: https://odysee.com/@mes:8/Trigonometry-Identities-sinx-y-sinxcosy-cosxsiny:f
BitChute: https://www.bitchute.com/video/51j0pYSAJDt4/
Rumble:
DTube: https://d.tube/#!/v/mes/onx33tm75mh
YouTube: https://youtu.be/edtk9thfwbM

View Video Notes Below!

Download these notes: Link is in video description.
View these notes as an article: https://peakd.com/@mes
Subscribe via email: http://mes.fm/subscribe
Donate! :) https://mes.fm/donate
Buy MES merchandise! https://mes.fm/store
More links: https://linktr.ee/matheasy
Follow my research in real-time on my MES Links Telegram: https://t.me/meslinks
Subscribe to MES Truth: https://mes.fm/truth

Reuse of my videos:

Feel free to make use of / re-upload / monetize my videos as long as you provide a link to the original video.

Fight back against censorship:

Bookmark sites/channels/accounts and check periodically

Remember to always archive website pages in case they get deleted/changed.

Recommended Books:

"Where Did the Towers Go?" by Dr. Judy Wood: https://mes.fm/judywoodbook

Join my forums!

Hive community: https://peakd.com/c/hive-128780

Reddit: https://reddit.com/r/AMAZINGMathStuff

Discord: https://mes.fm/chatroom

Follow along my epic video series:

#MESScience: https://mes.fm/science-playlist

#MESExperiments: https://peakd.com/mesexperiments/@mes/list

#AntiGravity: https://peakd.com/antigravity/@mes/series
-- See Part 6 for my Self Appointed PhD and #MESDuality breakthrough concept!

#FreeEnergy: https://mes.fm/freeenergy-playlist

#PG (YouTube-deleted series): https://peakd.com/pg/@mes/videos

NOTE #1: If you don't have time to watch this whole video:

Skip to the end for Summary and Conclusions (if available)

Play this video at a faster speed.
-- TOP SECRET LIFE HACK: Your brain gets used to faster speed!
-- MES tutorial: https://peakd.com/video/@mes/play-videos-at-faster-or-slower-speeds-on-any-website

Download and read video notes.

Read notes on the Hive blockchain #Hive

Watch the video in parts.
-- Timestamps of all parts are in the description.

Browser extension recommendations:

Increase video speed: https://mes.fm/videospeed-extension

Increase video audio: https://mes.fm/volume-extension

Text to speech: https://mes.fm/speech-extension
--Android app: https://mes.fm/speech-android