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anonymous
 one year ago
If sin theta=3/5 and theta is in quad 2 the exact form of cos (5pi/3theta) is .....?
I just need help with it I can do the work but a little help could help lol
anonymous
 one year ago
If sin theta=3/5 and theta is in quad 2 the exact form of cos (5pi/3theta) is .....? I just need help with it I can do the work but a little help could help lol

This Question is Closed

0_0youscareme
 one year ago
Best ResponseYou've already chosen the best response.0https://answers.yahoo.com/question/index?qid=20100719180410AAc49St

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0o.O thats not the same question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yeah I know for sure thats not the right answer lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Use the compound angle formula for cos,

0_0youscareme
 one year ago
Best ResponseYou've already chosen the best response.0i put the link there bcuz that he just put copy and paste

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this thing is refusing to let me use the equation tool... cos(AB)=cosAcosB+sinAsinB

0_0youscareme
 one year ago
Best ResponseYou've already chosen the best response.0i never said it had the answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nono lol I was talking about jacob

0_0youscareme
 one year ago
Best ResponseYou've already chosen the best response.0yeah but i put the link were he copy and pasted the answer some1 else put

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got the answer 3sqrt34/10 but thats the same answer as another problem I did

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0he deleted it i think... XD

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\sin \Theta=\frac{ 5 }{ 3 }\] \[\cos \theta=\frac{ 4 }{ 5 }\] \[\cos (\frac{ 5\pi }{ 3 }\theta)=\cos \frac{ 5\pi }{ 3 } \cos \theta + \sin\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oops incomplete... k im not used to this equation tool. meant to be sin5pi/3sin(theta)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@zepdrix Do you have any idea of how this is done? I think my work is correct

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[=\frac{ 1 }{ 2 }\frac{ 4 }{ 5 }+(\frac{ \sqrt{3} }{ 4 })\frac{ 3 }{ 5 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think I got it now after doing it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0But the way you were doing it was a little wrong lol
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