Question 741512
Evaluate the six trigonometric functions of theta.
a. theta= 990 degrees
b. theta= 8π 
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990º is rotating two 360º revolutions counter-clockwise plus 270º, terminating at 270º
720º+270º=990º
Evaluate functions at 270º:
sin(270º)=-1
cos(270º)=0
tan(270º)=undefined
csc(270º)=-1
sec(270º)=undefined
cot(270º)=0
..
8π is rotating four 2π revolutions counter-clockwise, terminating at 0
Evaluate functions at 0º:
4*2π=8π
sin(0)=0
cos(0)=1
tan(0)=0
csc(0)=undefined
sec(0)=1
cot(0)=undefined