The line L has equation r = 5i - 8j + k + ∂(i + 3j + 2k) and the plane π has equation 2x + 2y - z = 5.
The sine of the acute angle between the line and the plane is:
(4√14) / 7.
(2√14) / 7.
(3√14) / 7.
(√14) / 7.
