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Mathematics
OpenStudy (anonymous):

I have a question regarding differential equations: why is there a y in u(t) dy/dt + u'(t)y= u(t) g(t) link: http://tutorial.math.lamar.edu/Classes/DE/Linear.aspx equation number 4

OpenStudy (anonymous):

because at the beginning they started with dy/ddt + p(t)y=g(y)

OpenStudy (anonymous):

dy/dt*

OpenStudy (anonymous):

and it says that u(t)p(t)= u'(t) which means they only substituted the u'(t) instead of p(t)u(t) so the y doesnt change

OpenStudy (anonymous):

can u explain it frm d beginning

OpenStudy (anonymous):

so the y is there since the beginning?

OpenStudy (anonymous):

what

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