Define a* by the equation a* = π-x. Then ((−π)*)* =
Choose the correct choice from the following choices:
A) −2π B) -1 C) −π D) 2π E) 4π
for a* f(f(−π)) = f(π − (−π)) = f(π + π) = f(2π) = π − 2π = −π=−π
<result>C</result>
Define a* by the equation a* = π-x. Then ((−π)*)* =