SOLUTION: hello tutors i really need help with this problem.
what is the expression of tan (-220) is equivalent to ?
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Question 600726: hello tutors i really need help with this problem.
what is the expression of tan (-220) is equivalent to ?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
what is the expression of tan (-220) is equivalent to ?
--------
Add 360 --> 140 degs
tan(140) =~ -0.8390996
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