Mathematics
Senior High
Resolved

左辺から右辺にする途中式が分かりません。教えてください。

9,82+19.62=9,855
平方根

Answers

✨ Best Answer ✨

√(9.8²+19.6²)
=√{9.8²+(2×9.8)²}
=√(9.8²+4×9.8²)
=√(9.8²)(1+4)
=9.8√5

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