Trigonometric Identities
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11 Terms
1
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tanθ =
sinθ/cosθ
2
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cotθ =
cosθ/sinθ
3
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quotient identities
tanθ= sinθ/cosθ and cotθ= cosθ/sinθ
4
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reciprocal identities
cscθ= 1/sinθ, secθ= 1/cosθ, and cotθ= 1/tanθ
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cscθ =
1/sinθ
6
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secθ =
1/cosθ
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cotθ =
1/tanθ
8
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pythagorean identities
sin2θ + cos2 = 1, 1 + tan2θ = sec2θ, and 1 + cot2θ = csc2θ
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sin2θ + cos2 =
1
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1 + tan2θ =
sec2θ
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1 + cot2θ =
csc2θ
Note 
Flashcards (45)