3.1. - 3.3 Trigonometric Identities

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13 Terms

1
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tanx

sinx/cosx

2
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cotx

cosx/sinx

3
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cscx

1/sinx

4
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secx

1/cosx

5
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cos2x + sin2x

1

6
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cos2x

1 - sin2x

7
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sin2x

1 - cos2x

8
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sin(A + B)

sinAcosB + cosAsinB

9
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cos(A + B)

cosAcosB - sinAsinB

10
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tan(A + B)

tanA + tanB / 1 - tanAtanB

11
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sin(A - B)

sinAcosB - cosAsinB

12
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cos(A - B)

cosAcosB + sinAsinB

13
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tan(A - B)

tanA - tanB / 1 + tanAtanB