Find the value of p so that the vectors A=i+pj+k and B=4i-2j-2k are perpendicular to each other.

Find the value of p so that the vectors A=i+pj+k and B=4i-2j-2k are pe

1.	Find the value of p so that the vectors A=i+pj+k and B=4i-2j-2k are perpendicular to each other.
Answer» If they are perpenficular so there A.B=0Then(i+Pj+k).(4i-2J-3k)=4-2p-3=0,p=1/2