If avector =i+2j-3k and b=2i+4j+9kfind a unit vector parallel to a+b vector
Answers
Answered by
1
Step-by-step explanation:
a=i+2j-3k
b=2i+4j+9k
a+b=3i+6j+12k
|a+b|=√(3²+6²+12²)
=√189
unit vector of a+b=a+b
|a+b|
=3i+6j+12k
√189
any vector parallel to this has same unit vector as that of unit vector of a+b
Similar questions