²+ b ¢+ c =R(x), , b, c .
: ,
- II ²+ b ¢+ c =0;
- II ²+ b ¢+ c =R(x), , .
1: R(x)=()kx, () - m, :
k k2+ b k+ c =0, *=Q()kx, Q() m, .
k ( D>0) k2+ b k+ c =0, *=Q()kx, Q() m, .
k ( D=0) k2+ b k+ c =0, *=2Q()kx, Q() m, .
1: () ( ), Q(x) ( ).
2: R() , k=0, y* .
2: R(x)=ax(P1(x)cosbx+P2(x)sinbx) P1(x) P2(x) m1 m2, :
abi k2+ b k+ c =0, *=ax(Q1(x)cosbx+Q2(x)sinbx), Q1(x) Q2(x) , m1 m2.
abi k2+ b k+ c =0, *=ax(Q1(x)cosbx+Q2(x)sinbx), Q1(x) Q2(x) , m1 m2.
.
Aa | Nn | () | ||
Bb | () | Xx | ||
Gg | Oo | |||
Dd | Pp | |||
Ee | () | Rr | ||
Zz | Ss | |||
Hh | Tt | |||
QqJ | Ffj | |||
Ii | Cc | |||
Kk | Uu | () | ||
Ll | () | Yy | ||
Mm | () | Ww |
: 1, 2, 3,..., n,...
. 1, 2, 3,..., n... , n . S 1= 1, S 2= 1+ 2, S 3= 1+ 2+ 3,, S n= 1+ 2+ 3++ n,
.
, S 1, S 2, S 3,..., S n,...
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Sn, q¹1 :
|q|<1, , ; |
|q|³1, , . |