可以用導數(shù)來求.
y'=sqr(1-x^2)-x^2/sqr(1-x^2)
令y'=0
則x=sqr(2)/2,此時y max=1/2
注:sqr表示根號
x乘以根號里(1-x的平方)的最大值
x乘以根號里(1-x的平方)的最大值
數(shù)學人氣:573 ℃時間:2020-07-17 14:37:14
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