微分方程y-4y=4的通解是( )(C1,C2为任意常数)。

作者: tihaiku 人气: - 评论: 0
问题 微分方程y-4y=4的通解是( )(C1,C2为任意常数)。
选项
答案 B
解析 提示:显然C不是通解;对应齐次方程的通解为C1e2x+C2e-2x ,y=-1是一个特解,故应选B。

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