1.

If veca=-hati+hatj+2hatk, vecb=2hati-hatj-hatk and vecc=-2hati+hatj+3hatk, then the angle between 2overset(-)a-overset(-)c and overset(-)a+overset(-)b is

Answer»

`pi/4`
`pi/3`
`pi/2`
`(3PI)/(2)`

ANSWER :B


Discussion

No Comment Found

Related InterviewSolutions