K. S. Fatah1, & A. I. Amen2

1 College of Science, Salahaddin University,

2 College of Education, Salahaddin University

**Abstract**

In this paper, by using a simple transfomation of variables and the necessary and sufficient

condition in order that a solution of a periodic equation be periodic it is proved that the periodic logistic

equation (of Riccati type) has exactly two periodic solutions.

**Keywords**: A periodic equation no of solution of equation

**References**

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