Ola Ana
(r) 2x - y -2 = 0
o ponto P(1,0) pertence a reta (r)
distância
d = |Ax + By + C|/√(A² + B²)
A = 2
B = -1
C = -1
x = Px = 1
y = Py = 0
d = |2*1 + 0 - 1|/√(2² + (-1)²)
d = |1|/√5
d = √5/5
pronto
Obrigada pela ajuda 😘😘
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Answers & Comments
Ola Ana
(r) 2x - y -2 = 0
o ponto P(1,0) pertence a reta (r)
distância
d = |Ax + By + C|/√(A² + B²)
A = 2
B = -1
C = -1
x = Px = 1
y = Py = 0
d = |2*1 + 0 - 1|/√(2² + (-1)²)
d = |1|/√5
d = √5/5
pronto
Obrigada pela ajuda 😘😘