trig identities

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Pre-Calculus

10th

Last updated 4:33 PM on 12/11/23
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24 Terms

1
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1/csc (u) \=
sin (u)
2
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1/sec (u) \=
cos (u)
3
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1/cot (u) \=
tan (u)
4
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1/sin (u) \=
csc (u)
5
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1/cos (u) \=
sec (u)
6
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1/tan (u) \=
cot (u)
7
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sin (x) / cos (x) \=
tan (x)
8
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cos (α) / sin (α) \=
cot (α)
9
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sin²(θ) + cos²(θ) \=
1
10
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1 + tan²(x) \=
sec²(x)
11
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1 + cot²(u) \=
csc²(u)
12
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1 - cos²(u) \=
sin²(u)
13
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1 - sin²(u) \=
cos²(u)
14
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sec²(u) - 1 \=
tan²(u)
15
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sin(π/2 - u) \=
cos(u)
16
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cos(π/2 - u) \=
sin(u)
17
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tan(π/2 - u) \=
cot(u)
18
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sin(-u) \=
-sin(u)
19
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csc(-u) \=
-csc(u)
20
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cos(-u) \=
cos(u)
21
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sec(-u) \=
sec(u)
22
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tan(-u) \=
-tan(u)
23
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cot(-u) \=
-cot(u)
24
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