What is the value of m in `hati+mhatj+hatk` to be unit vector?

What is the value of in_0 in S.I. unit?

What is the magnitude of the vector hati +hatj +hatk ?

What is the projection of veca = 2hati - hatj + hatk on vec b = hati - 2hatj +hatk ?

Is hati + hatj a unit vector, explain.

What is the average value of g and what is its unit?

What is unit vector along 2 hati - 3hatj +6 hatk ?

If hata and hatb are two mutually perpendicular unit vectors what is the value of (2hata + 3hatb). (4hata - 5 hatb) ?

What is the angle between vectors veca = hati - hatj + hatk and vecb = hati + hatj - hatk ?