trig identities

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9 Terms

1
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Sinx*2 + cosx*2

= 1

2
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Tan*2x+1

= sec*2x

3
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Cot*2x+1

=csc*2x

4
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sin(2x)

2sinx•cosx

5
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Cos(2x)

Cos*2x-sin*2x

6
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Cos(2x)

1-2sin*2x

7
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Cos(2x)

2cos*2x-1

8
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Sin(a+b)

Sina • cosb + cosa • sinb

9
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Cos(a+b)

cosa • cosb - sina • sinb

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