【センター試験(類題)】裏・対偶【超わかる！高校数学Ⅰ・a】～演習～論理と集合＃１９
Synopsis
【センター試験(類題)】逆・裏・対偶のポイントは！ ・命題の真偽と対偶の真偽は一致する！ ・「または」がウザかったら対偶を ...
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