trigformler

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cos(2x)

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8 Terms

1

cos(2x)

1-sin²x, 2cos²x-1, cos²x-sin²x

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2

sin(2x)

2sinxcosx

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3

trigettan

1=sin²x+cos²x

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4

sin(x+u)

sinxcosu+sinucosx

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5

sin(x-u)

sinxcosu-sinucosx

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6

cos(x+u)

cosxcosu-sinxsinu

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7

cos(x-u)

cosxcosu+sinxsinu

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8

asinx+bcosx

csin(x+v) där c=(a²+b²)^1/2

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