题目

下列哪些算符是线性算符:()A. e^3xB. (d)/(dx)C. sqrt{}D. ((d^2)/(dx^2) - 4x^2)

下列哪些算符是线性算符:()

A. $e^{3x}$

B. $\frac{d}{dx}$

C. $\sqrt{}$

D. $\left(\frac{d^2}{dx^2} - 4x^2\right)$

题目解答

答案

ABD
A. $e^{3x}$
B. $\frac{d}{dx}$
D. $\left(\frac{d^2}{dx^2} - 4x^2\right)$