14 lines
250 B
Markdown
14 lines
250 B
Markdown
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alias: "cos(a+b)"
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---
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up::[[formules de trigonométrie]]
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sibling::[[sinus d'une somme]]
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type::"formule de somme"
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title::"$\cos(a+b) = \cos(a)\cos(b) - \sin(a)\sin(b)$"
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#s/maths/trigonométrie
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---
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$\cos(a+b) = \cos(a)\cos(b) - \sin(a)\sin(b)$
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