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Trigonometric functions defined by the unit circle
Worksheet
Grade Level
Trigonometry
TRIG.38 Trigonometric functions defined by the unit circle
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Which set of definitions uses the correct denominators and restrictions for P(t)=(x, y)?
A
tan(t)=y/x if x!=0; sec(t)=1/x if x!=0; csc(t)=1/y if y!=0; cot(t)=x/y if y!=0
B
tan(t)=x/y if x!=0; sec(t)=1/y if x!=0; csc(t)=1/x if y!=0; cot(t)=y/x if y!=0
C
tan(t)=y/x if y!=0; sec(t)=1/y if y!=0; csc(t)=1/x if x!=0; cot(t)=x/y if x!=0
D
tan(t)=1/x if x!=0; sec(t)=y/x if x!=0; csc(t)=x/y if y!=0; cot(t)=1/y if y!=0
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