The given angle is π/5.
The coterminal angles differ from the given angle by 2π and -2π.
The lower coterminal angle is
[tex] \frac{ \pi }{5}-2 \pi = - \frac{9 \pi }{5} [/tex]
The higher coterminal angle is
[tex] \frac{ \pi }{5} +2 \pi = \frac{11 \pi }{5} [/tex]
Answer: [tex]- \frac{9 \pi }{5} . \, \frac{11 \pi }{5} [/tex]
