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goformit100 Group TitleBest ResponseYou've already chosen the best response.0
solve it by cosine rule
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
I don't know how to.
 2 years ago

kr7210 Group TitleBest ResponseYou've already chosen the best response.0
dw:1339191253421:dw
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
How? I don't have all the measurements.
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
You don't need all the measurements
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1339195102769:dw
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
You know what b, c, and angle theta are. all you have to do is plug it in and solve for a
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
I got 130.9 and that isn't and option.
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
Could you explain to me how you got your answer?
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
I just tried to plug everything in like you said. 7^2+9^22(7)cos(117). I got 136.35. I did something wrong the first time. But its obviously still wrong.
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
Ok here's where you are wrong. It's 7^2+9^22ab cos 117. Can you see where you went wrong? (hint: you're missing b)
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
You did 2(7), the correct term should be 2(7)(9) because it is 2ab
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
Okay. I thought I forgot a number. Ill try it again.
 2 years ago

kr7210 Group TitleBest ResponseYou've already chosen the best response.0
dw:1339192083258:dw
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
You are correct!
 2 years ago

kr7210 Group TitleBest ResponseYou've already chosen the best response.0
found ur answer?
 2 years ago

alanli123 Group TitleBest ResponseYou've already chosen the best response.1
Medal please lol
 2 years ago

agillogly Group TitleBest ResponseYou've already chosen the best response.1
I picked 187.2 and it said the correct answer is 13.68.
 2 years ago

kr7210 Group TitleBest ResponseYou've already chosen the best response.0
answer is 187.20
 2 years ago
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