Verify that each given function is a solution of the differential equation.
1. ty' - y = t^2 ; y = 3t + t^2
2. y'' + y = sect , 0<t<pi/2 ; y = (cost)ln( cost ) + tsint
The Attempt at a Solution
int (tdy) = int(t^2 + y)dt
which isn't y=3t + t^2
For the second part I'm not sure where to go. Thanks for the help guys.