The Vector P-> = A I^ + A J^ + 3k^ And Q-> =a I^-2j^-k^ Are Perpendicular Each Other . The Positive Value Of A Is ?
Abhishek
4 Years Ago
The vector P-> = a i^ + a j^ + 3k^ and Q-> =a i^-2j^-k^ are perpendicular each other . The positive value of a is ?
(1) 3
(2) 4
(3) 9
(4) 13
asked Jun 12 12:00:00 AM
Abhishek
Q: 350
A: 0
