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1、1 第 15 章分式同步练习（15.2 分式的运算）班级学号姓名得分一、选择题1下列各式计算结果是分式的是()(A)bamn(B)nmmn23.(C)xx53(D)3223473yxyx2下列计算中正确的是()(A)(1)0 1(B)(1)1 1(C)33212aa(D)4731)()(aaa3下列各式计算正确的是()(A)mnmm(B)mnnm1(C)11mmm(D)nmmn4计算54)()(abaaba的结果是()(A)1(B)1(C)a1(D)baa5下列分式中，最简分式是()(A)21521yxy(B)yxyx22(C)yxyxyx.222(D)yxyx226下列运算中，计算正确的是(
2、)(A)(212121baba(B)acbcbab2(C)aacac11(D)011abb7ababa2的结果是()(A)a2(B)a4(C)bab2(D)ab精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页，共 4 页 -2 8化简22)11(yxxyyx的结果是()(A)yx1(B)yx1(C)xy(D)yx二、填空题92232)()(yxyx_10232)(xy_11a、b 为实数，且ab1，设1111,11baQbbaaP，则 P_Q(填“”、“”或“”)12aaa21422_13若 x0，则|3|1|31xx_14若 ab2，ab3，则ba11_三、解答题15计算：)()()(43
3、2bababa16计算：222244242xyyxyxyyx17计算：11)1211(22xxxx18已知2222222yxyxNyxxyM、，用“”或“”连结M、N，有三种不同的形式：精品资料-欢迎下载-欢迎下载 名师归纳-第 2 页，共 4 页 -文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7
4、B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10
5、C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G
6、1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4
7、Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V
8、10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I
9、2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y33 MN、M
10、N、NM，请你任选其中一种进行计算，并化简求值，其中x y5219先化简，再求值：1112xxxx，其中 x220已知 x220，求代数式11)1(222xxxx的值21等式236982xBxAxxx对于任何使分母不为0 的 x 均成立，求A、B 的值22A 玉米试验田是边长为am 的正方形减去边长为1m 的蓄水池后余下部分，B 玉米试验田是边长为(a1)m 的正方形，两块试验田的玉米都收获了500kg(1)哪种玉米田的单位面积产量高?(2)高的单位面积产量是低的单位面积产量的多少倍?精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页，共 4 页 -文档编码:CW4Z7B5L5V7 HS9V1
11、0C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2
12、G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW
13、4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9
14、V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4
15、I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:
16、CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 H
17、S9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y34 参考答案1A2D3D4D5D6D7 C8B9x4y10612xy111221a13922xx1423156ba16yxx22提示：分步通分172x18选择一：yxyxNM，当 xy52 时，原式37选择二：yxxyNM，当 xy52 时，原式73选择三：yxyxMN，当 xy52 时，原式73注：只写一
18、种即可19化简得1)1(xx，把 x2 代入得3120原式112xxxx220，x22，原式112xx，原式 1 21A3，B522(1)A 面积(a21)米2，单位产量15002a千克/米；B 玉米田面积(a1)2米2，单位产量是2)1(500a千克/米2，22)1(5001500aa，B 玉米的单位面积产量高；(2)11aa倍精品资料-欢迎下载-欢迎下载 名师归纳-第 4 页，共 4 页 -文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS
19、9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT
20、4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码
21、:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7
22、HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7
23、ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档
24、编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3文档编码:CW4Z7B5L5V7 HS9V10C7J9R7 ZT4I2G1W8Y3