Question

a unit vector in the direction of the negative vector(-ī-j-k) is​

Answer 1

Answer:

(i + j - k)/√3

Explanation:

Vector in opposite direction to (-i - j + k) is -ve of this vector.

  ⇒ - (-i - j + k)     ⇒ i + j - k

Magnitude of this vector is:

  ⇒ √1² + 1² + (-1)²

  ⇒ √3

∴ Unit vector = vector/magnitude

                      = (i + j - k)/√3

Required unit vector is  (i + j - k)/√3