Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
← 55 members online
 0 viewing
softballislove3
Group Title
Rewrite with only sin x and cos x.
sin 3x  cos x
 2 years ago
 2 years ago
softballislove3 Group Title
Rewrite with only sin x and cos x. sin 3x  cos x
 2 years ago
 2 years ago

This Question is Closed

siddhantsharan Group TitleBest ResponseYou've already chosen the best response.1
Hint: Expand sin3x by writing it as : sin(x+2x)
 2 years ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Recall 3x=2x+x So sin(3x)=sin(x+2x) Use the formula sin(u+v)=sin(u)cos(v)+sin(v)cos(u) to expand sin(x+2x)
 2 years ago

softballislove3 Group TitleBest ResponseYou've already chosen the best response.0
i was thinking that but i wasnt sure
 2 years ago

softballislove3 Group TitleBest ResponseYou've already chosen the best response.0
now all the options i am given have exponents in them how is that possible
 2 years ago

siddhantsharan Group TitleBest ResponseYou've already chosen the best response.1
That will be the case. sin2x is 2sinxcosx.
 2 years ago

softballislove3 Group TitleBest ResponseYou've already chosen the best response.0
i dont understand...
 2 years ago
See more questions >>>
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.