Hoofdstuk 4 + 6 Flashcards

1
Q

cosinusregel

A

a² = b² + c² - 2bc . cos Â
b² = a² + c² - 2ac . cos ^B
c² = a² + b² - 2ab . cos ^C

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2
Q

sinusregel

A

a/sin  = b/sin ^B = c/sin ^C

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3
Q

EIGENSCHAP

functievoorschrift f(x) = ax² + bx + c

A

Elk functievoorschrift f(x) = ax² + bx + c (met a ≠ 0) is te schrijven als f(x) = a(x - α)² + β met α = -b/2a en β = -b² + 4ac/4a

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