若直线ax+by=1 与圆x^2+y^2=1 相切,则实数ab的取值范围是[-1/2,1/2]

来源:学生作业帮助网 编辑:作业帮 时间:2024/10/20 22:15:27
xZn#Iv~j @/Tݞ3<$IL.IRE$EQ"ER7_3"3|NDrmJ̌s=G?j3޽ÛeN/ՖL~)̪ȫȗ1Q_z/_ooT3LO?~]֓ sI./ރ RVZl1HSֵo{߽w_~=¨OK5֩ů|+NmǟǏ)W_>?wIb5wN:2E \;#c?bMRY8X֍ i |5^\ )mRջ~ݕ?=Cp / wO= 7XXN?j|)q)???y Fj6殚حdy.LGdR"=b19]#p.rMYv7yQc^pd"_A2KN2bP\иs^eV7gdX3rdQ^I7_ૌ%!qX 0O F\p?kL\"+M|d%^?[}_`Dzbr%7@%3qY[qT<=9^5wx?] g.rs#c=Z"/\:<&2morRuGw_xx 8;037b$yEGۈ `xo5dWlAd'Ƽ$s)xx[4ʿ8xKwbdpi4f%}Ez BC*6_lL~&M‘bs &105!Bošx\:-#l+.Q?}mˁ6WL.81Dn, ؚۖ+.ABilN @̠3_a60?WOaY9` j=00: m|p7>\ghOwEb, 밉hq~% }(0?ñD~UG/~juzXwEZf#jyXaz3mpt\[7DC{ pz.uK!w#b,4wn Sӎ7Njx7$Cy5=^oP3CV ŸF3s-k򷞁@6a~E4n`GHUIsGkoaS; mѾrWB>Ɣߺu+x#bmp3CHb XK9CB:n/XX ,7Tr8C+/?)pNN B A:A1 .U16BQC#{ۖ!aQ8SZz]k~j^=N'JKҢ$^A-q@) \%ɇoXLQ y"+#P6Ab$W9ӘX"LTtq>[a~ .P"ƝdIPK^3f품?K?!ge\s&7>]x|\%1%eڋBEe*)&ԋ4K ey A~L"1~2 `;'R)=3&.j!,X)ibІi3uC)WE=h:!3d[-Uo)5IQxG"fd c]] IiѕvhOHH{9Py|`!JnxN^ZMcÜ PgJ#owyl]!$;*ؙ3\&Ҫ eO"ӫ^;l\zYTȝ ngj/Εdқu<;%qń4;fRyN5Ĕ`!fMõk~Y0R\1>1Ld݃DTf#~\4 F kpL dz!G2&uePigEAT9Yj1ϚdH T[??!|߼'ʊxh\oŮji|{ZC{R*w^5+%d9E(pXڡGb mV`2 G$.Hf4R]b04%$/h%F>Q6Tu) YF/?uƬmM9ǢbW] [\XHAXȿPCSd# uci:nZ%*.m*H}uwUΆWTXl3 rO\,c8Q߹<(JߍU:s,LQ`$7;b EFNUol)yל;jgrfŐ!P^ABQ0,m7މ}twb+blo šMs|h Mf 8vO:~K(Pu !t=Փg_3zWT/,v7j0 ה8u=#7T',מ9'WQաVt/B- 3 56ő6T³l|Onncաt"U+Ynz'\%-qp4s‘ejrK?9$22aoJ:wѴA͡K>:ah}3q؆`H)o&_F1Qt)uM>C̨rBdfUa?g$5 \7> CitE?<4ῥt8 P`%N8nZ¯\t-Ú%_nw->Vq:i ?Ym.54Lk"x=;f%+Ha*%C鳉m|E55'H(eǠ#ԶlmXEO>o] .&u{Ԝ Tx`h?Du< #grʿH 7oy X+j_P""k!{rkԌQ:42%}iT0#H1•Uv(='NSqKżߔk+eIuA-=;߄5u[FN..ݺ8gºF=H7zUq=>(UBll1є4,w0DسYE 9]/2\d8$uDb$7ɠTrC1iuhD Ze/5tѱd!Х A,'L#L t G$460.!rX6QI)RkF3KwY"7gtǣz=ʟ!VXH@L3 1rW@ IE4AO:@%T9(d/=/'q{DE$qF4Jo.=}$P$qa+A5 .ga{[ T'S-^ZZD!Uv X:MJ3oz#Jt?RQ*\I h!z)7ể}BfԨPDj=0{|M]J6:yVUgYfR:u>1a]Uhdq.N7]t