Question

Determine m de modo que os planos pi1 e pi2 sejam perpendiculares

Answer 1

vetor perpendicular ao plano π₁ é: (m,1,-3)

vetor perpendicular ao plano π₂ é: (2,-3m,4)

então (m,1,-3)*(2,-3m,4) = 0

2m-3m-12=0

m = -12

Answer 2

Resposta:

vetor perpendicular ao plano π₁ é: (m,1,-3)

vetor perpendicular ao plano π₂ é: (2,-3m,4)

então (m,1,-3)*(2,-3m,4) = 0

2m-3m-12=0

m = -12