Q64: Solve the differential equation. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8680/.jpg" alt="Solve
Q65: Solve the differential equation. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8680/.jpg" alt="Solve
Q66: Use power series to solve the differential
Q67: Solve the differential equation using the m
Q68: Solve the differential equation. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8680/.jpg" alt="Solve
Q70: Solve the initial-value problem <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8680/.jpg" alt="Solve
Q71: Solve the differential equation using the method
Q72: Solve the initial-value problem. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8680/.jpg" alt="Solve
Q73: A spring with a mass of 2
Q74: A spring with a mass of 2