<PRE><B>Question 1062077</B>
Find all solutions to Tan(theta-30 degrees)= -5 Book answers 131.3 and 311.3. I am not able to solve the equation and get the results of the correct answers.
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arctan(tan(t-30)) = arctan(-5)
t-30 = -78.69 degrees 
theta = = -48.69 deg = 360-48.69 = 311.31 degrees (Answer in QIV)
OR
theta = -48.69 degrees or theta = 180-48.69 = 131.31 (Answer in QII)
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Cheers,
Stan H.
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