Mathematics
Senior High
なぜf(a)=a2乗+3aになったのですか?
例2
関数 f(x) の値
2次関数 f(x)=x2+3xにおいて
f(5)=52+3・5= 25+15 = 40
f(a) = a²+3a
d
である。
終
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