论文部分内容阅读
第Ⅰ部分(苏教版教材)1.(选修2-1P6例2)把下列命题改写成“若p则q”的形式,并写出它们的逆命题、否命题与逆否命题,同时指出真假:四条边相等的四边形是正方形.1-1.(改编)两组对边分别平行的四边形是平α件
Part I (Elected Version of Teaching Materials for Supian) 1. (Elective 2-1P6 Example 2) Rewrite the following propositions as “if p then q” and write out their inverse, non-proposition and inverse proposition, Also pointed out that true: the four sides of the same quadrilateral is a square .1-1. (Adaptation) The two parallel to the side of the parallelogram is a flat piece