Geometria Analítica Flashcards

1
Q

distância entre dois pontos no plano cartesiano

A

dAB = raiz (XB - XA)² + (YB - YA)²

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2
Q

condição de alinhamento de três pontos

A

determinante = 0

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3
Q

área de um triângulo no plano cartesiano

A

A = 1/2 . determinante

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4
Q

coeficiente angular de uma reta

A

m = YB - YA / XB - XA

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5
Q

equação fundamental da reta

A

y - y0 = m (x - x0)

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6
Q

equação reduzida da reta

A

y = mx + n

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7
Q

coeficiente angular determina a

A

inclinação da reta

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8
Q

equação geral da reta

A

ax + by + c = 0

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9
Q

distância entre ponto e reta

A

d = I ax + by + c I / raiz a² + b²

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