Formules Flashcards by Luigi fisher | Brainscape

Q

Cos(2x)

A

cos²(x)-sin²(x)

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Q

Argsh’(x)

A

1/√(1+x²)

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Q

Argch’(x)

A

1/√(x²-1)

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Q

Argth’(x)

A

1/(1-x²)

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Q

tan(a+b)

A

tan(a)+tan(b)/(1-tan(a)tan(b))

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Q

cos(a+b)

A

2cos(a+b/2)cos(a-b/2)

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