The graph shows the f(x). Which is true?
a.(−/2)f(−π/2) and (/2)f(π/2) are both equal to 1
b.
f is discontinuous at both −/2−π/2 and /2π/2
c.
The one-sided limits of f at =−/2x=−π/2 are both defined
d.
Whenever a 2-sided limit for x between −−π and π is defined, it is equal to ()