1
Q
When do you use principal angles?
A
When solving inverse trig equations
2
Q
sin, csc
A
-pi/2, pi/2
3
Q
cos, sec
A
0, pi
4
Q
tan
A
-pi/2, pi/2
5
Q
cot
A
0, pi
When do you use principal angles?
When solving inverse trig equations
sin, csc
-pi/2, pi/2
cos, sec
0, pi
tan
-pi/2, pi/2
cot
0, pi
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