Soles the differential equations using the substitution u=y’; u’=y”
y’y”=2

Answer with explanation:

The given differential equation

  y'y''=2--------(1)

We have to apply the following substitution

  u=y'

 u'=y"

Applying these substitution in equation (1)

u u'=2

Where , J and K are constant of Integration.

doubled

step-by-step explanation:

$25 becasue a 10 increase would make it from 80 to 50