SOLUTION: Directions: Solve the equation for exact solutions over the inverval [0,2pi) tan^2 x - 2tanx + 1 = 0 I keep retrying it and ending up with a jumbled mess. How do I simplify t

Question 952624: Directions: Solve the equation for exact solutions over the inverval [0,2pi)
tan^2 x - 2tanx + 1 = 0
I keep retrying it and ending up with a jumbled mess. How do I simplify the equation?
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Let t = tan(x).

Remember the substitution used. Refer to the unit circle or meaning of tangent.
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