GIA'I PHU.O.NG TRNH
24)
Gia'i phu.o.ng trnh:
y2
+x2
y0
=xyy0
2
x
2
HD gia’i:Vi^et phu.o.ng trnh la.i
y0
=y
y
x
−1d^ay la phu.o.ng trnh thu^an nh^at, gia'i
ra du.o..c nghi^e.m t^o'ng quat:
y2
=Cxey
x
2
+x2
y0
=xyy0
2
x
2
HD gia’i:0
=y
y
x
−12
=Cxey
x