ANSWER

EXPLANATION
The period refers to the interval over which the function completes one full cycle.
The given function completed four cycles in on the the interval.
[-π,π]
The period is


Simplify;


The last choice is correct.
Not sure about the others but
b) 8,192
the pattern is multiplying by 8 each time for b
Answer:Big Chungus
Step-by-step explanation: