Hi  

Find the exact solution on [0,2pi): 





Agree:



 0r 







 0r 





 

Answer by ikleyn(52908)   (Show Source): You can put this solution on YOUR website!
 .


 +  = 0   ===========>


 = 0.



EITHER  tan(x) = 0  OR  tan(x) +  = 0.



If tan(x) = 0, then there are TWO solutions  x = 0  and  x =   in the given interval.



If tan(x) +  = 0,  then  tan(x) = -  and there are TWO solutions  x =   and  x = .



In all, the given equation has  4 (four, FOUR)  solutions in the given interval.




Solved.





 

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