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36. 1. f(x)+g(x)=g(x)+f(x) 2. (f(x)+g(x))+h(x)=f(x)+(g(x))+h(x) 3.a(f(x)+g(x))=af(x)+ag(x) 4. . 0: F(x)+0=f(x) 5). F(x) f(x)+(-f(x))=0
*=* *(*)=(*)* *(+)=*+* . 1 *1=
37.
38. , P(x) Q(x), S(x), , P(x) = Q(x)S(x). S(x) P(x) Q(x).
. , :
1) P1(x) P2(x) Q(x); P1(x) + P2(x) P1(x) - P2(x) Q(x);
2) P(x) Q(x); T(x) ; P(x)T(x) Q(x);
3) P(x) Q(x); Q(x) H(x); P(x) H(x):
. :
4) P(x) Q(x); deg P(x) ≥ degQ(x);
5) deg P(x) = degQ(x); P(x) Q(x) , :
( , , 0.)
, P(x) Q(x) deg P(x) = degQ(x), 0, .. , 0. .
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39. . , .. , .
, , f (x) g (x), q (x) r (x), ,
f (x) = g (x)∙ q (x) + r (x), (*)
, g (x), , , f (x) g (x) . (*) r (x) (), , f (x) g (x) .
, f (x), , g (x):
f (x) = g (x)∙ q 1(x) + r 1(x), (1)
, r 1(x) ≠ 0, , g (x), r 1(x):
g (x) = r 1(x)∙ q 2(x) + r 2(x), (2)
, r 2(x) ≠ 0, , r 1(x), , r 2(x):
r 1(x) = r 2(x)∙ q 3(x) + r 3(x), (3)
, r 3(x) ≠ 0, :
r 2(x) = r 3(x)∙ q 4(x) + r 4(x), (4)
.. , , , , n + 1- rn + 1 :
rn 2(x) = rn 1(x)∙ qn (x) + rn (x), | (n) |
rn1 (x) = rn (x)∙ qn +1(x) + rn +1(x), | (n +1) |
rn+1 (x) = 0. | (n +2) |
rn f (x) g (x).
, (n + 2) 0 rn + 1(x) (n + 1), rn 1(x) = rn (x)∙ qn + 1(x) rn 1 (x) (n), , rn 2(x) = rn (x)∙ qn + 1(x) qn (x) + rn (x), .. rn 2(x) = rn (x)(qn + 1(x) qn (x) + 1), .. (2) , g (x) = rn (x)∙ Q (x), , , (1) f (x) = rn (x)∙ S (x), Q S . , rn (x) , , (.. ), .
40. (.. ), f (x) g (x) -.
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