trig identities
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Last updated 12:08 PM on 3/12/26
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15 Terms
1
New cards
cos²x+sin²x=
1
2
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cos²x=
1-sin²x
3
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sin²x=
1-cos²x
4
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cot²x+1=
csc²x
5
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cot²x=
csc²x-1
6
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csc²x
cot²x+1
7
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1+tan²x=
sec²x
8
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tan²x=
sec²x-1
9
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sec²x=
1+tan²x
10
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sin2x
2cosxsinx
11
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2cosxsinx
sin2x
12
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cos2x
cos²x-sin²x
13
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cos²x-sin²x
cos2x
14
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tan2x
2tanx/1-tan²x
15
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2tanx/1-tan²x
tan2x
