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(2009•临夏州)方程组的解是________.
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(2009•临夏州)方程组
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEcAAAAoCAYAAACsEueQAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAKoSURBVGhD7ZnNlYMgEMfpYsvYQ+504iUdWEYu
FmAVuXimib3k5DVdzPIhCIoIGof4JO/t2xcDw/jjzwAzBMpnkQAJsWmqCl4XhueF8/7rgBACzfPK
aABmcA4Dw2oJXP7RFvovUWTf0kW/JnDecP/9gVvVfNb1vgVas8Emg1oAMt/XhzJQNdzA/3Vrdgvu
S2CiHDhHqaZnzFGKnK1vUA9Xc2iOHDivZyMl1v295xOgl4V5qUEBW15S2Bq8YrVnqYnft9hNkk0P
LR3GJjVoXdsm4uHIXsIghbYXYEaD5gV9cvdMjWjvPBbLjgi7o2us3ReXUnxSbd3xhSeJcDgeGcD8
pKMmzok/uoeAbTvHoLVIHRdzRo/le00mMhkOpwN0s+SF8nxg1RLVvvVcNT6ZR8Hf3GgenJPhME54
ugRi/WH1XLqqr1r/Eg6HX9vrK9b47nYczh7lCOmJ/iZmrER721/d1zxz+io4lCsmtLXufv+AAd/E
RStHrHuqZ1TvXJFnFX9wdJeXarMjlqWSk5uA3q0mG8RgKxpO6tip7ffuTqnjxbTPB8cEdivexHiM
2CYfHHPXWgrSiBQWhnLgdI+7PCFf+y4+knLgNNVNwikfRcCQ0JdO773qorQGOK+S3PIIgGjFlDgz
pyOVo1MVBZALyMScAmhBOerxQSnSEwfzcs4JTF6+E/IJFIUHJ1dpxpOCNfMS+s0+BNq71q6DoC/H
k6s0E7q/RdztPq8cD5y8pZlpftpez6HfUhLssaWZmOwgamkGA44EvqE048nuYZRmRn2gwYkozawp
B700gwhntTQThJOjNIMIZ7U0E4CTpzSDBCeqNLMAJ19pBgHOKUszofJLamlG53bujw79cP/1pRlB
BC3JfrbSjJYLCqCI4zu6fCcDLpYaSvoU4B/T8hRzLDLopwAAAABJRU5ErkJggg==
)
的解是________.
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(2009•临夏州)方程组
的解是________.
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(2009•临夏州)方程组
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(2009•临夏州)在实数范围内定义运算“⊕”,其法则为:a⊕b=a2-b2,求方程(4⊕3)⊕x=24的解.
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(2009•临夏州)抛物线y=-x2+bx+c的部分图象如图所示,请写出与其关系式,图象相关的2个正确结论:________
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(2009•临夏州)抛物线y=-x2+bx+c的部分图象如图所示,请写出与其关系式,图象相关的2个正确结论:________
(对称轴方程,图象与x正半轴,y轴交点坐标例外).
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(2009•临夏州)不等式组
的解集是________.
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(2009•临夏州)如图,随机闭合开关S1、S2、S3中的两个,求能让灯泡ⓧ发光的概率.
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(2009•临夏州)计算:
=( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAjCAYAAACHIWrsAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE9SURBVFhH7ZbhEYMgDIUzGTuxDsswCqOkBAEL
RAhn6vWHXr1eLebLe8FEwIcPeJiHakBvAQHiaf1UgxqQKMEZXPA2FXo7CRjQGYtzfagIDA7NSl50
obG01gFiplHNUI+JwsNOj5bqSKdxGJhqZiDZAWhcWXLcSAmfSeRAJWD6LhYe9/e/OcEJSEFPWCp/
DGCw8kumVwoZOykmD6TFvXzu2pEZG2TcnRcJUw1p8aiuV5wlskBmd3L1zyGgtbMUnewMGD/twQF7
OwlWazvuGohPK5q6EWgTfENlja/ZWE92Gkl6qq3tBZIDsQtxHeQ31xJQ4rvmmv8FSif6yo0thZKJ
rgiUTXQ9oHCiqwGlE10JKJ/oOsCNia4C3JnoCsC9iX4fuDnR7wPzW11t8oKX3Rl0q9Osspf8/wIl
Lm2t+QDjRhuTpSufvgAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAjCAYAAACHIWrsAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEvSURBVFhH7ZbtEcMgCIaZzJ1cx2UcJaNQ0Wi+
qMCF5nq95pofTZWHF4hvAR++4GEeugFzBAQod8xTDW5AoiwpoMDzU1hwmELEuT50BC4JgySvVOFQ
0tEHKJnmKPZj36xWzoyR+kh3SEXz9VqBVA7AkPqStpES3pJYA/WAhwFp+4ESrYz2nRNcgRR0g/UN
AQdfeneYclJMHkiLz/K5ZxPodTpJIZ8w0OKrurPimURmOif9h2M5e9MpuwXLR77O5STY6CU3NLRh
DAI1fQ+VeX0G6mQ+fdJo0nM92v5AqkDpM3OCfOhZBWrq7rnme4FaR5eqYVKocXRHoM7R/YBKR3cD
ah3dCah3dB+gwdFdgBZHdwDaHP0+0Ojo94Hrvzqto7sApSCW301HmyXwu7W/D3wBRPcn1kRpniQA
AAAASUVORK5CYII=
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAjCAYAAACHIWrsAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAEtSURBVFhH7ZbREcMgCIaZzJ1cx2UcJaNQ0GjU
UNHT5qEXr3loqnz8P9QD8OEFD/NwG9BbQAB6rO9q2AZkyuEMKrx9CgmHzljs68ONwMOh0eSRC5Wl
uQ5AmXqr1qMsVrTTo+U68mMcab6vE8h2ABqXtsSDnPCVxBkoBawaJJ4HTjQw4ndJcABy0AuWDhjM
fO2/I9jJMWUgb27lS+860Ht3skI5YeDNd3Wt4p5EoTs79YfazlR0zu5A+uirtZNhuZZS0/CB3Ahc
9BKq81IPhM58+qYZSW/r1fYC2QGqs3CD/OhdAI74vnPPC9zpZoj1WlpZujIRpECDln6fCGaLPARc
ngiKrHTghomgdEEFrk8EtekqcHkiaIqsAml+X54Ipiyd7UJtv65QizD5+/8DP5TLKWu+XVTTAAAA
AElFTkSuQmCC
)
D.
-
(2009•临夏州)不等式组
的解集是________.
-
(2009•临夏州)若a=
,b=
,试不用将分数化小数的方法比较a、b的大小.