Trigonometry –Law of Sines and Cosines Vocabulary

# Trigonometry –Law of Sines and Cosines Vocabulary -...

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Trigonometry –Law of Sines and Cosines Vocabulary Degree an angle measure Radian arc measurement pie/180 Unit Circle circle with a radius of 1 initial side starting point terminal side ending point Central Angle angle formed by 2 radii complimentary 2 angles add up to 90 degree supplementary 2 angles add up to 180 degree sine y/r cosine x/r tangent y/x cotangent x/y secant r/x cosecant r/y Reference Angle angle( acute) between x-axis and ray

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Unformatted text preview: amplitude height above and below coefficient of function frequency # of cycles for 360 or 2 pie radians Period # of degrees or radians for 1 complete cycle coefficient of X Horizontal Phase Shift left or right found in parenthesis Vertical shift up or down (K) Identity both sides are equal and all variables have values Law of Sines sinA/a=SinB/b=SinC/c Law of Cosines A2=b2 +C2 -2bc x CosA...
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