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数形结合（待续）晨旭（接上期）例１０（１９９０年理科）设函数ｙ＝ａｒｃｔｇｘ的图象沿ｘ轴正方向平移２个单位所得到的图象是Ｃ，又设图象Ｃ＇与Ｃ关于原点对称，那么Ｃ＇的对应函数分析：与图象Ｃ对应的函数是Ｃ＇与Ｃ关于原点对称，所以，与Ｃ’对应的函数应解选（...
Combination of Numbers (To Be Continued) Chen Xu (Continued from the previous issue) Example 10 (1990 Science) Let the image of the function y=arctgx be translated in the positive direction of the x-axis by 2 units. The resulting image is C and C ’With C on the origin symmetry, then the analysis of the corresponding function of C’: The function corresponding to image C is C’ and C are symmetrical about the origin, so, the function corresponding to C’ should be de...