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Last updated 2:43 PM on 5/12/26
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15 Terms

1
New cards

1

cscx

sinx

2
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1

secx

cosx

3
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1

cotx

tanx

4
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sin2x+cos2x=

1

5
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1+tan2x=

sec2x

6
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1+cot2x=

csc2x

7
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cos(α+β)=

cosαcosβ-sinαsinβ

8
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cos(α-β)=

cosαcosβ+sinαsinβ

9
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sin(α+β)=

sinαcosβ+cosαsinβ

10
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sin(α-β)=

sinαcosβ-cosαsinβ

11
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tan(α+β)=

tanα+tanβ

1-tanαtanβ

12
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tan(α+β)=

tanα-tanβ

1+tanαtanβ

13
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sin2θ=

2sinθcosθ

14
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cos2θ=

  • cos2θ-sin2θ

  • 1-2cos2θ

  • 2cos2θ-1

15
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tan2θ=

2tanθ.

1-tan2θ