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Trig

QuestionAnswer
How do you find Coterminal θc Add/Subtract 360 or 2π
Degrees-->Radians (x)(π/180)
Radians-->Degrees (x)(180/π)
Area of a Sector A=1/2θr*2
Arc Length S=θr
Quotient Identities: Sinθ/cosθ=? tan θ
Quotient Identities: cos θ/sin θ=? cot θ
Reciprocal Identities: sin θ=? 1/csc θ
Reciprocal Identities: cos θ=? 1/sec θ
Reciprocal Identities: tan θ=? 1/cot θ
Pythagorean Identities: 1=? sin*2 θ+cos*2 θ
Pythagorean Identities: sec*2 θ=? 1+tan*2 θ
Pythagorean Identities: csc*2 θ=? 1+cot*2 θ
How to find the Reference angle? θr=distance from "x" axis
When dealing with the special right triangle π/3, the measurement "square root of 3" is located where? Opposite of the angle "π/3"
sin θ=o/h or ? y/r
cos θ=a/h or ? x/r
tan θ=o/a or ? y/x
Cofunction Identity: sin θ= ? csc (π/2-θ)
Cofunction Identity: cos θ sec (π/2-θ)
Cofunction Identity: tan θ cot (π/2-θ)
When referring to a graph represented by sin θ the "x" axis, positive "y" axis, and negative "y" axis are respectfully? "x" axis = 0 Pos. "y" axis =1 Neg. "y" axis =-1
When referring to a graph represented by cos θ the "y" axis, positive "x" axis, and negative "x" axis are respectfully? "y" axis = 0 Pos. "x" axis =1 Neg. "x" axis =-1
When referring to a graph represented by tan θ the "y" axis, and negative "x" axis are respectfully? "y" axis = Undefined "x" axis =0
Created by: user-1712011
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