precalc
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Last updated 10:38 AM on 3/19/26
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29 Terms
1
New cards
tanθ
sinθ / cosθ
2
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cotθ
cosθ / sinθ
3
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sinθ
1 / cscθ
4
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cosθ
1 / secθ
5
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tanθ
1 / cotθ
6
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cscθ
1 / sinθ
7
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secθ
1 / cosθ
8
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cotθ
1 / tanθ
9
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sin²θ + cos²θ
1
10
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tan²θ + 1
sec²θ
11
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1 + cot²θ
csc²θ
12
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cos(−θ)
cosθ
13
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sin(−θ)
−sinθ
14
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tan(−θ)
−tanθ
15
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sin(π/2 − θ)
cosθ
16
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cos(π/2 − θ)
sinθ
17
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sin(A + B)
sinA cosB + cosA sinB
18
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cos(A + B)
cosA cosB − sinA sinB
19
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sin(A − B)
sinA cosB − cosA sinB
20
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cos(A − B)
cosA cosB + sinA sinB
21
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sin(2θ)
2sinθ cosθ
22
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cos(2θ)
cos²θ − sin²θ
23
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cos(2θ)
2cos²θ − 1
24
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cos(2θ)
1 − 2sin²θ
25
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cos(A + B) sign
minus
26
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cos(A − B) sign
plus
27
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sin(A + B) sign
plus
28
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sin(A − B) sign
minus
29
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sin² + cos²
always = 1
