A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
if sin theta=3/5 and theta is in quad 2 the exact form of sin (theta+ pi/6) is .....
I had already asked this question but still don't understand it
anonymous
 one year ago
if sin theta=3/5 and theta is in quad 2 the exact form of sin (theta+ pi/6) is ..... I had already asked this question but still don't understand it

This Question is Closed

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2\[\sin (\theta + \alpha) = \sin \theta \cos \alpha + \sin \alpha \cos \theta\]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2therefore: \[\sin (\theta + \frac{ \pi }{ 6}) = \sin \theta \cos \frac{ \pi }{ 6 } + \sin \frac{ \pi }{ 6 } \cos \theta\]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2and then you want to use your exact value table to help you out here since they want the final answer in exact form (this means including radicals) :)

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2dw:1436542535457:dw also note: \[\pi/6 = 180/6 = 30\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@butterflydreamer I am working it out but I don't think its right tho

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2you have the right idea :) BUT note that \[\sin \theta = \frac{ 3 }{ 5 } \]

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2hang on give me a minute :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@butterflydreamer I thought I had finally got it :D but then I still got the wrong answer ___

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Does it have to do with it being in Quad 2?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2did you change sin theta = 1/2 to sin theta = 3/5 ?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2oh ALSO! we have to work out what cos theta equals to

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we did change it after

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2hmm what is the final answer? i want to check that i have it right before showing you the way i did it :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you have any idea about correct answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The answer i got is .0866025

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you can find the value of cos theta by formula \[\cos ^{2}=1 \sin ^{2}\theta\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and then simply put all the value in the equation

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2alright, well i've written up my working out. Not 100% sure this is correct but i'll upload it in a bit :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@butterflydreamer theres a way to check it if its right so we'll see :D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It didnt upload for some reasn lol

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2waiiit give me a min xD

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.04/5 not  3/5

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2i know xD my bad http://prntscr.com/7r45nc

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2do you understand what i did? @shortyyshayy ^_^

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@butterflydreamer yeah trying it out right now to see if its right so fingers crossed

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2okey dokeyy *crosses fingers*

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I had the same problem yesterday with this and people tried to help me but no luck and I checked it and still not the correct answer ohmygod Im so annoyed now with this problem lol

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2.... sigh. What is the answer "meant" to be then?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0.901 when you plug it back it in the original equation of sin theta + pi over 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0when you plug 3/5 in for theta I mean

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2hmm.. i don't think you can do that because: dw:1436544628958:dw

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2so it is the correct answer :) but you would plug in \[\theta = \sin^{1} (3/5) \] into the equation :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Wait whats the correct answer then? MY heads going to explode XD

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So checking the work like sin (3/5 + pi/6) is wrong?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2xD wait... i'm getting confused now LOLLL. well it when i do that, i get a different answer? T_T... I'm pretty sure working out is correct \[\sin( \theta + \frac{ \pi }{ 6 }) = \frac{ 3 \sqrt 3  4 }{ 10 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you upload your work again please lol? just so I can use it as a reference lol?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Our professor showed us how to check our answer but your method and my method either of them don't work out XD

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2i know right xD I know that's the answer.. but idk why i can't check it ....

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So are you sure it's correct then cuz I might just put your answer lol? Cuz maybe its the way were both checking it?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2i think it's correct. I looked at the previous time you uploaded the question, and it's the same answer so xD that's a sign LOL

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What was the drawing you were showing me above with the inverse?

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2it was me thinking i was onto something (only to fall short) xD don't worry about it because it doesn't work anyway .

butterflydreamer
 one year ago
Best ResponseYou've already chosen the best response.2anyways, i'm heading off to bed now (it's 2:27am here) . I HOPE that my working out was correct

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lmaoo no way? Ohmygod thanks so much for helping me out!! haha night!!
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.