Posted by **Sally** on Tuesday, May 18, 2010 at 5:29pm.

What are the values of theta in the interval 0degrees less than or equal to theta less than or equal to 360 degrees that satisfy the equation tan theta - radical3=0

- algebra -
**billy**, Tuesday, May 18, 2010 at 5:33pm
if it is multiple choice you could just plug in the answers for theta and figure out which ones equal 0

- algebra/trigonometry -
**Reiny**, Tuesday, May 18, 2010 at 5:34pm
so just

tan Ø = √3

by CAST rule, the tangent is positive in I and III

so Ø = 60° or Ø = 240°

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