Mathematics
Senior High
等号成立条件って10無視して良いんですか?
16
2
a
+10
ニ
2
a
a
a
であり,a>0のとき,相加平均と相乗平均の関係より
a°
2+
16
+1022,/a.
16
2
2
nei
= 2V16 + 10
=18
であり,等号が成立するのは
16
a'=
2
a
2
すなわちa=16
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