Mathematics
Junior High
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なんで√2になるんですか?

(3) 98 √98_v98 7 √49 98 49 =√2

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✨ Best Answer ✨

参考・概略です

7を2乗して、√の中に入れると
 7=√7²=√49

約分をして、2になるので
 √98/49=√2

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