



 
Hi Peggy. There are a number of ways of solving the problem. Here's one way. First we start with the trig identity that decomposes tangent into That makes our equation which rearranges to There's another trig identity that we can use: So we have this: which rearranges to this: Now we can "complete the square" in order to factor this quadratic: This gives us two answers. You will have to check to make sure they both Cheers,  


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