Factor (Reverse Distribute): 5x−5y y(5x−5) xy(5−5) 5(x−y) x(5−5y)
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First, we are going to add 
from both sides of the equation:
Next, we are going to use the trig identity:
to rewrite our expression:
Finally, using our unitary circle, we can infer that
from 0 to 
when 
and 
We can conclude that the solutions of the equation <span>cos (x) tan (x) -1/2=0 over the interval [0,2π] are: </span>
Next, we are going to use the trig identity:
Finally, using our unitary circle, we can infer that
We can conclude that the solutions of the equation <span>cos (x) tan (x) -1/2=0 over the interval [0,2π] are: </span>