已知f(x)=log(3)x+2,x属于【1,9】,则函数y=【f(x)】^2+f(x^2)的最大值是
举一反三
- 【单选题】对任意实数x 1 , y 1 , x 2 , y 2 , x 1 < x 2 , y 1 < y 2 , 分布函数P{x 1 <X≤x 2 , y 1 <Y≤y 2 }=? A. F(x 2 , y 2 )+ F(x 1 , y 1 )+ F(x 1 , y 2 )+ F(x 2 , y 1 ) B. F(x 2 , y 2 )- F(x 1 , y 1 )+ F(x 1 , y 2 )- F(x 2 , y 1 ) C. F(x 2 , y 2 )+ F(x 1 , y 1 )- F(x 1 , y 2 )- F(x 2 , y 1 ) D. F(x 2 , y 2 )- F(x 1 , y 1 )- F(x 1 , y 2 )+ F(x 2 , y 1 )
- 1函数y=-2/x的值域?2已知二次函数f(x)=(m-2)x^2-(m^2-4)x+2的图像关于y轴对称,求f(3)
- 已知\( y = {f^2}(x) \),假设\( f(u) \)二阶可导,则 \( y'' \)为( ). A: \( 2{[f'(x)]^2} + 2f(x)f'(x) \) B: \( 2[f'(x)] + 2f(x)f''(x) \) C: \( 2{[f'(x)]^2} + 2f(x)f''(x) \) D: \( 2{[f'(x)]^2} + f(x)f''(x) \)
- 已知奇函数f(x)与偶函数g(x)满足f(x)+g(x)=a^x-a^-x+2,且g(b)=a,则f(2)的值为已知奇函数f(x)与偶函数g(x)满足f(x)+g(x)=a^x-a^-x+2,且g(b)=a,则f(2)的值为谢谢
- 若函数$f(x)$具有二阶导数,且$y=f({{x}^{2}})$,则$y'' =$( )。 A: $f'' ({{x}^{2}})$ B: $2f'’ ({{x}^{2}})$ C: $2f’ ({{x}^{2}})+4{{x}^{2}}f’' ({{x}^{2}})$ D: $4{{x}^{2}}f’ ({{x}^{2}})+2f'' ({{x}^{2}})$