Question

two vectors P = 2 i + J + 2K and q = i + J + K will be perpendicular if
A. B = 0
B. b= 1
c. b= 2
d. b = -4​

Answer 1

Answer:

B.b=1 when 2 vectors p=2i+j+2k and q=I+j+k will be perpendicular