- #1
Tspirit
- 50
- 6
(1) ##\frac{d^{2}y}{dx^{2}}=0##
(2) ##\frac{d^{2}y}{dx^{2}}=k^{2}y##, where k is a real positive number.
(2) ##\frac{d^{2}y}{dx^{2}}=k^{2}y##, where k is a real positive number.