SOLUTION: I need help solving the following equation for 0(<=) X (<=)2pi tan^2 X + tanX=0

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Question 337034: I need help solving the following equation for 0(<=) X (<=)2pi
tan^2 X + tanX=0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
tan%28X%29%5E2%2B+tanX=0
tan%28X%29%28tan%28X%29%2B1%29=0
Two solutions:
tan%28X%29=0
X=0
.
.
.
tan%28X%29=-1
X=%283%2Api%29%2F4, %283%2Api%29%2F4%2Bpi=%287%2Api%29%2F4