(通用版)2020高考数学一轮复习1.2命题及其关系、充分条件与必要条件课件理.ppt

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第二节 命题及其关系、充分条件与必要条件,突破点一 命题及其关系,1,突破点二 充分条件与必要条件,2,课 时 跟 踪 检 测,3,Contents,抓牢双基自学回扣,研透高考深化提能,抓牢双基自学回扣,研透高考深化提能,利用等价转化法,从集合的角度判断,利用定 义判断,条件和结论带有否定性词语的命题,常转化为其逆否命题来判断真假,利用集合中包含思想判定抓住“以小推大”的技巧,即小范围推得大范围,即可解决充分必要性的问题,直接判断“若p,则q”“若q,则p”的真假在判断时,确定条件是什么、结论是什么,Thank You !,

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