A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
lilsis76
 3 years ago
us addition formulas for Sin & Cos to simplify the expressions.
instructors instruction: LET S=45, T=30
cos 2u cos 3u  sin 2u sin 3u
lilsis76
 3 years ago
us addition formulas for Sin & Cos to simplify the expressions. instructors instruction: LET S=45, T=30 cos 2u cos 3u  sin 2u sin 3u

This Question is Closed

lilsis76
 3 years ago
Best ResponseYou've already chosen the best response.0I know for cosine its..... cos(s+t)=cos S cos T  sin S cos T does that mean i have to put the 2u or just a 2?

lilsis76
 3 years ago
Best ResponseYou've already chosen the best response.0oh im sorry UGH! dumb teacher instructions. since S is 45 and T is 30....i fill those in? Am i trying to find cos and sin? or just sin?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.