A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

amoodarya
 2 years ago
Best ResponseYou've already chosen the best response.1first sin5x sin 3x =1/2{cos(5x+3x)  cos (5x3x)}

sat_chen
 2 years ago
Best ResponseYou've already chosen the best response.0how in the gods name did you get that

amoodarya
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1359154820627:dw

sat_chen
 2 years ago
Best ResponseYou've already chosen the best response.0the only trick we know so far are the trigonometric identities and half angle formula

amoodarya
 2 years ago
Best ResponseYou've already chosen the best response.1understand ? i use product to sum formula

sat_chen
 2 years ago
Best ResponseYou've already chosen the best response.0ive never seen that format of sum for sine before thanks. is there other ways to do it or is that it

amoodarya
 2 years ago
Best ResponseYou've already chosen the best response.1other way is to expand sin 5x ,sin 3x but its harder i send there formula 4 you

sat_chen
 2 years ago
Best ResponseYou've already chosen the best response.0i guess ill have to remember the sum rule then :P

sat_chen
 2 years ago
Best ResponseYou've already chosen the best response.0the other one you sent is not gonna be much help in the long run probably. thanks a lot though

amoodarya
 2 years ago
Best ResponseYou've already chosen the best response.1and 3st way write sin5x=sin4x+x and sin 3x=sin4xx so you have conjugate union if expand them it is easier than 2nd way (that i said)
Ask your own question
Ask a QuestionFind 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.