Mathematics
Junior High

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(4) √26÷2√2
(3) 2/10. 5/10 20 3 3/10

Answers

参考・概略です

(4) √26÷2√2

 ●√26=√13×√2,2√2=2×√2 なので

 =(√13×√2)÷(2×√2)

 ●√2で約分できるので

 =(√13)/(2)

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