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Interpret angle relationships used in trigonometry
Worksheet
Grade Level
Trigonometry
TRIG.25 Interpret angle relationships used in trigonometry
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A radian diagram shows acute angles x and pi/2-x in a right triangle. Which identity follows?
A
sin(x)=cos(pi/2-x)
B
sin(x)=sin(pi/2-x)
C
cos(x)=-cos(pi/2-x)
D
tan(x)=-tan(pi/2-x)
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