F(x) =



2x
e
2x − e−x
với x 6= 0
a với x = 0

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

it would rotate about 180 degrees.

i believe it’s 165 because if u add 137 and 58 u get 195 and then subtract that from 360 and there’s ur answer