Question

Normal form problem [see attachment]

Answer 1

I'm not familiar with the notation but I'll guess this refers to the equation:

`p = x \cos \phi + y \sin \phi`

`11\pi/6` is -30 degrees

`4 √(3) = x (√(3)/2) - y/2`

`√(3) x - y - 8 √(3) = 0`

Choice b