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anonymous
 one year ago
Which of the following cannot be derived from the law of sines?
anonymous
 one year ago
Which of the following cannot be derived from the law of sines?

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Loser66
 one year ago
Best ResponseYou've already chosen the best response.0What is the law of sines?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dont know.... lol that why i asked

Loser66
 one year ago
Best ResponseYou've already chosen the best response.0hahaha... I don't know either. That is why I asked you about the law before considering which one is the correct one. Can you google it?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0lmfao.. yea i did man! i got nuthin! imma fail this test !

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Law of Sines \(\large \dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin C} \)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0A. The first choice is just the first two fractions of the law of sines, so it certainly can be derived from the law of sines.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Now look at choice B. Can you change that equation to make it look like the law of sines?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0B. \(a \cdot \sin B = b \cdot \sin A\) What happens if you divide both sides by \(\sin A \sin B\) ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0You can only cross multiply if you have a fraction equaling a fraction. You need to do to choice B the opposite of cross multiply and end up with two fractions. Do the division I mentioned above. What do you get?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0to be honest ! not really sure!

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0This is still choice B. Divide both sides by sin A sin B: \(\dfrac{a \cdot \sin B}{\sin A \sin B} = \dfrac{b \cdot \sin A}{\sin A \sin B} \) What cancels out of each side and what are you left with?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0\(\dfrac{a \cdot \cancel{\sin B}}{\sin A \cancel{\sin B}} = \dfrac{b \cdot \cancel{\sin A}}{\cancel{\sin A} \sin B} \) What is left? \(\dfrac{a }{\sin A } = \dfrac{b }{\sin B} \) Isn't what is left still the law of sines? That means choice B. is not the answer.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Now work on choice C. First, cross multiply. Then divide both sides by sin B sin C. What do you get?
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