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

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

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

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

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

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

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

agillogly
 2 years ago
Best ResponseYou've already chosen the best response.1I 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.

alanli123
 2 years ago
Best ResponseYou've already chosen the best response.1Ok 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)

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

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

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