AQA A Level Maths Identities

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11 Terms

1
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sin2x+cos2x

1

2
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sin (A ± B)

sinAcosB±sinBcosA

3
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cos (A ± B)

cosAcosB∓sinAsinB

4
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tan(A ± B)

tanA±tanB/1∓tanAtanB

5
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sin2x

2sinxcosx

6
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cos2x

cos2x-sin2x

7
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cos2x

2cos2x-1

8
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cos2x

1-2sin2x

9
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tan2x

2tanx/1-tan2x

10
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sec2x

1+tan2x

11
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cosec2x

1+cot2x