TM NGHI^E.M CU'A CAC PHU.O.NG TRNH SAU

19)

Tm nghi^e.m cu'a cac phu.o.ng trnh sau:

y

0

+xy =e

x

HD gia’i:

D - ^ay la phu.o.ng trnh tuy^en tnh c^ap 1 va co nghi^e.m t^o'ng quat la

y= Cx +e

x

ex

x

.