-..急吖..-..先给着100分..已知a是方程x^2+x-(1/2)=0的一个根,试求代数式[a^3-1]/[a^5+a^4-a^3-a^2]的值..已知A-B=4,且(A+B+1)(A+B-1)=63,化简(A-B)/(2A+2B)-(A^2+B^2)/(A^2-B^2)后,再求其值.若二次三项式(K+1)X^2-2X-1在实数
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 08:31:31
![-..急吖..-..先给着100分..已知a是方程x^2+x-(1/2)=0的一个根,试求代数式[a^3-1]/[a^5+a^4-a^3-a^2]的值..已知A-B=4,且(A+B+1)(A+B-1)=63,化简(A-B)/(2A+2B)-(A^2+B^2)/(A^2-B^2)后,再求其值.若二次三项式(K+1)X^2-2X-1在实数](/uploads/image/z/7633398-30-8.jpg?t=-..%E6%80%A5%E5%90%96..-..%E5%85%88%E7%BB%99%E7%9D%80100%E5%88%86..%E5%B7%B2%E7%9F%A5a%E6%98%AF%E6%96%B9%E7%A8%8Bx%5E2%2Bx-%281%2F2%29%3D0%E7%9A%84%E4%B8%80%E4%B8%AA%E6%A0%B9%2C%E8%AF%95%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F%5Ba%5E3-1%5D%2F%5Ba%5E5%2Ba%5E4-a%5E3-a%5E2%5D%E7%9A%84%E5%80%BC..%E5%B7%B2%E7%9F%A5A-B%3D4%2C%E4%B8%94%28A%2BB%2B1%29%28A%2BB-1%29%3D63%2C%E5%8C%96%E7%AE%80%28A-B%29%2F%282A%2B2B%29-%28A%5E2%2BB%5E2%29%2F%28A%5E2-B%5E2%29%E5%90%8E%2C%E5%86%8D%E6%B1%82%E5%85%B6%E5%80%BC.%E8%8B%A5%E4%BA%8C%E6%AC%A1%E4%B8%89%E9%A1%B9%E5%BC%8F%28K%2B1%29X%5E2-2X-1%E5%9C%A8%E5%AE%9E%E6%95%B0)
xZ[OI+yXxY%0Mh%$lnasp &WncC0vߩ[v UuN:u.)3uy63F2Re-mut(NSY'}wzbh!+f9gB\xnE9Iҝ;`$:MaɁIX\I5x\ȅz}aV茰^:X
}mf
Aˤ)FNH7/'By!G?[}^`S} (KoUSrFGr)V6
x^F |bZFq>(*JB9,e\mn\lj?./FWG4ZM/էpe7ƊZO{s7X+tN{$P۟`@!BfN))^z;,[ѻ;7g;E~6o(>.$vj{$[1ivE2·7YMkY͛\a(FLө3)̴H!$_n.!dE,F]8:A'qwi@/mV`YBBl-DH@ݒS6^)ͺ/VY1Gtw}I93JK"r R܊[^rWB\B1Ӌ"2NNg6˼9o?϶_a!gTt'dt7q.#W%t4$bPw\1~娄#`૮m=酔&tfS:8>1b>s[$zn?vi/t,#(f3fC2\ySlb
/!3?w9gSiQ6|؊vQivѸF~BCHJuah?ODfVY004{KBߊBW92CdthMFhnfKqẍ́t1̓VBkiтp?cUp'q:f?RPG݁9ȭGv,;q`E k;Ư9[Lܙ56dX(.
o-;=A
֧#bjZh+K'/Vqm"6Jȯ`l6*rM62e#O_9vvф g`]GP4
U$Zä&5×:(Q?d`@
(@p*mcZJ8_=B FOsZLpOЏv_el^b#lwQ*_\bQŅ( lɫ;"L`0:rv>;W]ب9>6L̹iC껝qT]b3@ت#fI5 !>lsVz9f넝p\}Ru4PNFmQ81S!XQ'N <0ahu:mZtAnQockCdէچs""r0K#!6NJҒ)$=ڸ)v
կU6ODD[BUvCs1'>f;:]n0hq
XyvbĨwj\:Irov;ڹitv;?eDb7kZ#YM`3bllj!+x+l
uUHY@#d bB߰>Ti܌A53VebdU4ſ*M~Ka5)N MoRsܷ!Uq$8̫'AArmYLh5I-bU(vuk;]#iz
?C#Nl .qSN4J`l5쟺clH¤Bxi Uw_4nY`@YZnA0F*.~RN)ϡ8`GPfkr$&(-.;$w|1KϛS[$B|E[l ]٦lb ( M4w
Qxto8Wy7!^b>z|;Ƙ+NPӊ@goIߤLcG/_=
:eu.X"K"vK{Iys
NQ wyA _>yY>˰/_Ҷ;V+$S$ࣅ!-p
Rw]p GD@Av+Lӣu5fwPUms .NM1g-~
ARb~R`VnQ;>_mS-d/Fe%ןQ
ޡ$y%ql#pR8]wkRZgc&ύQ!0