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Vektor CB = b - c = ( -3, -5, 3 )
Vektor CP = [ vektor CA x PB + vektor CB x AP ] / ( AP + PB )
= [ ( -3, 0, 3 ) x 2 + ( -3, -5, 3 ) x 3 ] / ( 3 + 2 )
= [ ( -6, 0, 6 ) + ( -9, -15, 9 ) ] / (5)
= ( -15, -15, 15 ) / 5
= ( -3, -3, 3 )
Vektor PC = - vektor CP = - ( -3, -3, 3 )
= ( 3, 3, -3 )