Mathematics
Senior High
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答えの導き方が分からないので教えて頂きたいです。

30 + √15 23 2290 2278 H □ (4) 1+√5 1-√√5 NX 1+5 1-5 9 = NT-2NTO 4 -->> N/W (SN+1) -1 +NG+NT IS 17N²5-√5\$ 211 SNEKY

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✨ Best Answer ✨

途中式はこうです。

YyyUuuIii

ありがとうございますm(*_ _)m

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