考研数学历年真题详解

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1、ூ./௃ᢥ
23,
ᑡ41.(95,⚪6ᑖ)A”▤▣ab00b222ba2b2a24(E஻▤ᓫ▣A'AḄb3%0~,0h.஻3aa
8t4"3%b3a300%%00"#▣L4l<0,)L4+EI஺ூᑖ᪆௃ᵫ▣;AA'=E)=>▣=(a2a3-᝛)(4஺4-34)A+EḄᑡὶ@ᑮᑭᵨD;ᩩFᑣᨵIJKLMᦑyz⌱⚗}(D)3.(99,⌱(4)⚪3ᑖ)A஻?X஻জOE=AAPQRᐭ⌕UVḄᑡ▣B&

2、quot;X/H▣ᑣW஺(A)m>nᨵᑡIIAB᧎0.ঝ“Z”[ᑭᵨ]^▣;W_`ḄaAALbO44'=ERᐭUV஺(B)>"ᨵᑡIIA31=0.cdJ▣eVfᑡUVgᔠὃj(C)n>m,ᨵᑡIIABIH0.Ḅ⚪klmn.ூ./௃᪷p/14r=sᨵ(D)஻ுᨵᑡII1=0.A+E=iA+AAT=A(E+Ar)=iA\E+A=A\A+E,(17AI)IA+EI=0.C1ூ௃l⌱(B)}1TAI>0,ᦑIA+EI=Oூᑖ

3、᪆௃⌱⚗ᙠᑖᑡᔲ},ᑡᔲ}▣ᔲ⌮Ḅᐙ⌕2.(96,⌱(5)⚪3ᑖ)▤ᑡᩩF▣ᔲ⌮f▣ᔲ£¤a0hὶ¥ᡠ§ᨬ©ª⌕ᑨ¬ABᔲ£ᓽ஺®⚪¯^ABḄᐹ±ᐗ³D´KµPQ0[b20Ḅ;lᵨᑡḄᨵᐵUVKL·)/஺0a%0ூ./௃}AB}m▤K▣¹00º(AB)<min[r(A),r(S)]<min(m,n)qa2a3a4—bஹbb3b&2m>nᵫÀ^r(AB)<n<m,(B)aia2a?ia4+b]b^b1bAᓽAB´

4、£ḄᦑᨵᑡIABI=O,Dyz⌱⚗}(B)(C)2-*2)(஺3a4-ᓃ3¡)'210'(D)(“24-4஽)(4⌮4
¡")4.(04,Á(5)⚪4ᑖ)▣A=120,001▣BA84*=2BA*+E,ᐸWA*}Aூ௃l⌱(D)ூᑖ᪆௃®⚪᪷pᑡ23Âᳮᢥ᯿
23UV)/Ḅŧᢥ᯿ÆÇÆÈḄÎÏ▣Eᓫ▣ᑣIBI=-923Âᳮ·UVᑖ᪆/®⚪ᨵ
ÂḄᢈÊឋூᑖ᪆௃ᐜᵨÑA*4=IAIE·Òᓄூ./௃]^;IÔÕÖ×A,Ø=>B(A-E)=2EIB(A-

5、E)I=I2EIABAtA=2BA*A+A,IAI=3,ᨵ=IBIIA-EI=43AB=6B+A,ᓽ(3A-6E)B=A,bIÔÙIBI=4IA-Er'ᑡᨵMI3A-6EIIBI=IAI=313A-6EA27,ᦑᡠ)ᑡ11,=4=4x2=8}Ú=--1195.(05,Á(5)⚪4ᑖ)ᙳ}3Ýᑡᔣßà▣A=(a,a,a)B=x2y(%+a+%©+2a+4a,a+3a+9%223t2)᝞âIAI=1,ãäÚ=2ூᑖ᪆௃OBᑏᡂᵨAÖ×ç
▣Ḅa,bᵨK▣¤×Ḅᑡឋè·UVᓽ஺ூ./௃é▣BᵨᑖᙽᢈÊᨵ111B=(a,aa

6、)12323149IÔÙᑡëᵨᑡ×LÑØ111

7、B

8、=

9、A

10、123=2

11、íð▣149
ஹ▣eVᡠ§IBI=2.'12-2"1.(97,Á(4)⚪3ᑖ)4=4r3,-2r3-116.(06,(5)⚪4ᑖ)▣4=,-12_B}ò▤ó▣¹AB=0,ôh=-3E}ᓫ▣▣BBA=B+2E,ᑣூᑖ᪆௃ᵫAB=0Åö^r(A)+r(B)<3,IBI=r(B)>0஺r(A)W2,ᦑᨵIAI=0=>t=-3.ூᑖ᪆௃®⚪}UVK▣ᑡlᑭᵨூ./௃ᵫB}ò

12、▤ó▣¹AB=0,▣eVfᑡḄᐵ¥ᩭ)/ùúឋKûüAx=0ýᙠó/ᦑூ./௃ᵫBA=B+2EØBA-B=2E12-21.(96,⚪6ᑖ)!4=$%,,ᐸ'A=4t3=Onr=-33-11E)n▤ᓫ-▣J)n/01ᑡᔣ3?ðஹÎÏ▣)JḄ567891.(05,12⚪4ᑖ)A}n(஻22)▤⌮▣þᣚAḄ12▣B,(1)/P=AḄᐙ⌕ᩩ?)Ὢ7=1A*,8"ᑖA,BḄ▣ᑣ(2)Bᡭ7'=1EA)FG⌮▣(A)ᣚA*Ḅ1ᑡ2ᑡB*ூᑖ᪆௃L⚪

13、ὃN▣OPḄᑖQRஹTᔠ