9sinA=0.6 for 90°

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9sinA=0.6 for 90°<A<180°. Find A.

Guest Jul 7, 2014

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Best Answer

First, divide both sides by 9....this gives...

SinA = (.6/9) = (.54)

Using the sine inverse function, we can find A

asin(.54) = 32.683638846258° But since you specified that this angle lies in the second quadrant, we have 180°-32.683638846258° = 147.316361153742°

CPhill Jul 7, 2014

CPhill · Answer 1 · 2014-07-07T03:18:32

First, divide both sides by 9....this gives...

SinA = (.6/9) = (.54)

Using the sine inverse function, we can find A

asin(.54) = 32.683638846258° But since you specified that this angle lies in the second quadrant, we have 180°-32.683638846258° = 147.316361153742°