Consider the following statements, Which of the following is/are true.
1
If the signal contains odd half-wave symmetry then a0 = 0 always.
2
If the signal is odd then it must contain odd half-wave symmetry.
3
If the signal is even then it can not contain odd half-wave symmetry.
4
If the signal is neither even nor odd but still it can have odd half-wave symmetry.