ap pre calc

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7 Terms

1
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sin2x+cos2x=

1

2
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1+tan2x=

sec2x

3
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1+cot2x=

csc2x

4
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sin(a+-b)=

sinacosb+-cosasinb

5
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cos(a+-b)=

cosAcosB-+sinAsinB

6
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sin2x=

2sinxcosx

7
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cos(2x)=

cos2x-sin2x=1-2sin2x=2cos2x-1