Trig identity proofs: sin(A+B) = sinAcosB + cosAsinB
In this video I present this proof in the smallest steps possible. All you need to know to understand this are the basic trig rules sin(theta)=opposite/hypotenuse etc.
Posted from my blog with SteemPress : http://magicmonktutorials.com/blog/2018/10/21/trig-identity-proofs-sinab-sinacosb-cosasinb/
你那里天气如何?请支持中文区的见证人, @abit @bobdos @ety001 @justyy @oflyhigh @partiko (首字母顺序),全投,一个都不要漏。倘若你想让我隐形,请回复“取消”。
Hi @magicmonk!
Your post was upvoted by @steem-ua, new Steem dApp, using UserAuthority for algorithmic post curation!
Your UA account score is currently 4.391 which ranks you at #2174 across all Steem accounts.
Your rank has improved 19 places in the last three days (old rank 2193).
In our last Algorithmic Curation Round, consisting of 236 contributions, your post is ranked at #142.
Evaluation of your UA score:
Feel free to join our @steem-ua Discord server