^{1}Department of Mathematics, Hamedan Branch, Islamic Azad University, Hamedan, Iran.

^{2}Department of Mathematics, Tehran Science and Research Branch, Islamic Azad University, Tehran , Iran.

Abstract

In this paper, we study rst order linear fuzzy dierential equations with fuzzy
coecient and initial value. We use the generalized dierentiability concept and apply the
exponent matrix to present the general form of their solutions. Finally, one example is given
to illustrate our results.