1.

One plane is parallel to the vectors hat i + hat j + hat k and 2 hat i Other plane is parallel to the vectroshat i + hat j andhat i - hat k . The angle between the line of intersection of both the planes and the vector 2 hat i - hat j is ................

Answer»

`COS^(-1)"" (3/(sqrt(50)))`
`cos^(-1)""( 2/(sqrt(30)))`
`cos^(-1)""((1)/(sqrt(10)))`
`cos^(-1)""(19/(sqrt(30)))`

Answer :C


Discussion

No Comment Found

Related InterviewSolutions