for what value of x, the vector A=3i+xj -4k is perpendicular to the vector B=2i-2j+6k\u200b

for what value of x, the vector A=3i+xj -4k is perpendicular to the ve

1.	for what value of x, the vector A=3i+xj -4k is perpendicular to the vector B=2i-2j+6k\u200b
Answer» x= -9