November 26, 2015

Homework Help: Trigonometry

Posted by Janie on Sunday, January 24, 2010 at 7:19pm.

A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?

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