\(设f(x),g(x)是可微函数,且满足u(x,y)=f(2x+5y)+g(2x-5y),\\u(x,0)=\sin {2x},u'_y(x,0)=0,则u(x,y)=(\,)\)
A、\[\sin{2x}\cos{5y}\]
B、\[\sin{5x}\cos{2y}\]
C、\[\sin{2y}\cos{5x}\]
D、\[\sin{5y}\cos{2x}\]
发布时间:2024-09-04 20:32:03
A、\[\sin{2x}\cos{5y}\]
B、\[\sin{5x}\cos{2y}\]
C、\[\sin{2y}\cos{5x}\]
D、\[\sin{5y}\cos{2x}\]