SOLUTION: I have to find the exact trigonometric expression for: sec (30º) - cos(7π/4)= please??? :(

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Question 1029883: I have to find the exact trigonometric expression for: sec (30º) - cos(7π/4)=
please??? :(
Answer by ikleyn(52824)   (Show Source): You can put this solution on YOUR website!
.
I have to find the exact trigonometric expression for: sec (30^0) - cos(7π/4)=
please??? :(
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

sec(30°) =  =  =  = .


 =  = .


sec (30°) - cos(7π/4) =  =  = .


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