Trig Identities
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14 Terms
1
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Reciprocal Identity
sin x =
1
csc x
2
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Reciprocal Identity
cos x =
1
sec x
3
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Reciprocal Identity
tan x =
1
cot x
4
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Reciprocal Identity
csc x =
1
sin x
5
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Reciprocal Identity
sec x =
1
cos x
6
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Reciprocal Identity
cot x =
1
tan x
7
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Quotient Identity
tan x =
sin x
cos x
8
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Quotient Identity
cot x =
cos x
sin x
9
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Pythagorean Identity
sin²x=
1-cos²x
10
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Pythagorean Identity
cos²x=
1-sin²x
11
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Pythagorean Identity
sec²x=
1+tan²x
12
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Pythagorean Identity
tan²x=
sec²x-1
13
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Pythagorean Identity
csc²x=
1+cot²x
14
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Pythagorean Identity
cot²x=
csc²x-1
Note 
Flashcards (100)