SOLUTION: What is the answer to 2 cos 5pi/6-3 tan 5pi/4?
I got sqrt 3 -3 as the answer but not sure if it's correct. Help? Thanks!
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Question 415071: What is the answer to 2 cos 5pi/6-3 tan 5pi/4?
I got sqrt 3 -3 as the answer but not sure if it's correct. Help? Thanks!
Answer by dnanos(83) (Show Source): You can put this solution on YOUR website!
2cos(6pi/6-pi/6)-3tan(4pi/4+pi/4)=
2cos(pi-pi/6)-3tan(pi+pi/4)=
2cos(pi/6)-3tan(pi/4)=
2*sqr3/2-3*1=
sqr3-3.
It's ok.
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