Mathematics
Senior High
(3)の解説お願いします
EXERCISES
A
17 x が次の値をとるとき, x+2+x-2 の値を求めよ。
(2) x=1 (3) x=-4
(1) x=3
3 実数
(4) x=√2
p.41 2
18 次の式を計算せよ。
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