ÊÔ¾í,ÊÔÌâ,examination paper.
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GRE2002Äê9ÔÂÊýѧÌâ¿â(1)

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1.ÊýѧÓÐÒ»Ì⣺±È½ÏÌâ p=481.234 ±È½Ïa is the hundreds unit ºÍ b is
the hundredths unit µÄ´óС¡£¡£¡£Á½¸öÓÐÊ²Ã´Çø±ð£¬ÎÒÒ²²»¶®¡£¡£¡£
(ÀÃ×Ð £º±È½ÏµÄÊÇÕâ¸öÊý×Ö°ÙλºÍ°Ù·ÖλµÄ´óС£¬a=4,b=3£¬ËùÒÔa>b)
(silverwolf:»ùÊý´ÊÊDZíʾСÊýµãǰµÄ룬ÐòÊý´Ê±íʾСÊýµãºóµÄ¡£>
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2.Ò»ÖÖoperation:n@(ËüÄǸö·ûºÅÎÒ´ò²»³öÀ´£¬ÓÃ@´úÌæ)£¬n@=n+1/n£¬ÎÊ((1/7)@)@ºÍ(7@)@ÄǸö´ó£¿Ò»Ñù´ó
(ÀÃ×УºÌâÄ¿ÃèÊö²»Ì«Çå³þ£¬ÊÇn+(1/n)»¹ÊÇ(n+1)/n?,¼ÙÈçÊÇǰÕߣ¬´ð°¸ÕýÈ·)

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3.is the ordered number of (x,y) 0(uvv:ºóÕß´ó)
£¨Ò°Âí£ºÌâÒå²»Çå³þ£©
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4.»¹ÓÐÒ»µÀÈõÖÇÌâ:r~3+2r~2-35r=0,±È½ÏrºÍ0µÄ´óС
(uvv:²»È·¶¨)
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5.x:y=3:2,x/x+y=?3:5(no.1)
(uvv£ºÕýÈ·)
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6.1/[(1/9)+(1/9)+(1/9)>=? ¹þ¹þ£¡3 (no.1)
(uvv£ºÕýÈ·)
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7.a baby in given to a woman when she is 25, when the child is w, the woman is x ,
which one could express? Answer:w=x-25(no.1)
(uvv£ºÕýÈ·)
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8.ÎÊ8C6Óë8C2µÄ´óС£¬µ±È»ÊÇÒ»Ñù´ó¡£
(uvv£ºÕýÈ·)
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9.a>2,ÎÊa^21-a^20Óëa^20µÄ´óС¹ØÏµ£¨´óÓÚ£©
(uvv£ºÕýÈ·)
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¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï´úÊý²¿·Ö¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï¡ï
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1.ÊýÁÐÌâ:A(1)=1,A(n)=24A(n-1)+8,ÇóA(66)/6µÄÓàÊý
2.A(1)=8,A(n)=A(n-1)/[A(n-1)-1>£¬ÇóA(5)
3.ÊýÁÐÌ⣺a1=2£¬a2=6£¬an=an-1/an-2£¬Çóa150
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1.A(1)=1,A(n)=24A(n-1)+8,ÇóA(66)/6µÄÓàÊý
±¶Êý,ËùÒÔ¶ÔÓÚÈÎÒân>2µÄA(n)£¬ÓàÊý¾ùΪ8/6µÄÓàÊý£¬¼´2.>

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2.A(1)=8,A(n)=A(n-1)/[A(n-1)-1>£¬ÇóA(5)
°´Õմ˹æÂɽøÐÐÏÂÈ¥µÄÒ»´®Êý.>

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3.a1=2£¬a2=6£¬an=a(n-1)/a(n-2)£¬Çóa150
, ÓÖÓÐa(n-1)=a(n-2)/a(n-3) => 1/a(n-3)=a(n-1)/a(n-2) <2ʽ> ¡£Á½Ê½ºÏ²¢ºóÓÐ,an=1/a(n-3) <3ʽ> . ÔÙ½«<3ʽ>ÖеÄn»»Îªn-6£¬Ôò
ÓÐ:a(n-3)=1/a(n-6) <4ʽ>. 3,4ʽ»¯¼ò£¬ÏûÈ¥a(n-3)ºóÓÐ,an=a(n-6).ËùÒÔ´ËÊýÁÐÒÔ6¸öÊý
Ϊһ¸öµ¥Î»½øÐÐÑ­»·.ËùÒÔ,a150=a6,¿ÉÒÔÈÝÒ׵üÆËãµÃa6=1/3.ËùÒÔa150=1/3>

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4.ÊýѧֻÓÐÒ»µÀÌâÄ¿²»»á£¬ receptial n equal to 8n,1/nºÍ 2±È½ÏÄĸö´ó
(×¢Òâ:ÎÒÏëÓ¦¸ÃÊÇreciprocal¡ª¡ªµ¹Êý ¼´1/n£½8n)
£¨ÀÃ×Уº¼ÆËãµÃ1/n=Õý¸º2*¸ùºÅ2£¬ËùÒÔÎÒÈÏΪ´ð°¸ÊDz»È·¶¨£©

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5.Êýѧ£ºw,x,y and z are 4 co
  ¹²8Ò³: 1 [2] [3] [4] [5] [6] [7] [8] ÏÂÒ»Ò³   
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