题目
微分方程y'' - (2)/(x)y' = 0的通解为(）。A. y = cx^2B. y = c_1x^2 + c_2C. y = c_1x^3 + c_2D. y = c_1x + c_2x^3
微分方程$y'' - \frac{2}{x}y' = 0$的通解为(）。
A. $y = cx^2$
B. $y = c_1x^2 + c_2$
C. $y = c_1x^3 + c_2$
D. $y = c_1x + c_2x^3$
题目解答
答案
B. $y = c_1x^2 + c_2$