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Clearnote
Q&A
Senior High
Mathematics
答えは√2-1とありますが、-1+√2でも...
Mathematics
Senior High
almost 2 yearsago
minana
答えは√2-1とありますが、-1+√2でも正解になりますか?
1x (1-√2) (3) (与式)=- = 1-√2 (1+√2)(1 − √√2) ¯¯12-(√2)² - 1-√2=-(1-√2)=√2-1 (3) (2)
Answers
mo1
almost 2 yearsago
参考・概略です
●合っています
項の前後を入れ替えているだけなので、同じ値です
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