May 2021 0 108 Report
1）設a+b、b+c、a+c皆為有理數，則a、b、c是否皆為有理數？（需證明） 2）a、b是實數，且a+2b與2a+b都是有理數。試證：a、b都是有理數。 3）（1+3/4）（1+3/5）（1+3/6）...（1+3/50）=？ 4）1.36（36循環）*6.38（38循環）=？

請各位數學高手幫幫我~謝謝！！

1、2題是證明題哦！再次感謝！！

科學 / 數學
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