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f(x) =1 + ∫[0,x] (x-t)f(t) dt
0)f(x) =1 + ∫[0,x] (x-t)f(t) dt http://note.com/2036820/n/n96a4308873eb 0.1)f(0) =1 1)…
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dx/dt =sinx
1)dx/dt =sinx 2)http://twitter.com/kiyos06/status/1220323222329208832 3)tan(x/2) =Ce^t …
![](https://assets.st-note.com/production/uploads/images/60603935/rectangle_large_type_2_863dd8d9a58b90d59c82093fdd138321.jpg?width=200)
f(x) =1 + ∫[0,x] (x-t)f(t) dt
0)f(x) =1 + ∫[0,x] (x-t)f(t) dt http://note.com/2036820/n/n96a4308873eb 0.1)f(0) =1 1)…
![](https://assets.st-note.com/production/uploads/images/57315748/rectangle_large_type_2_705144667cd2cd92435ec5d66c5241de.jpg?width=200)
dx/dt =sinx
1)dx/dt =sinx 2)http://twitter.com/kiyos06/status/1220323222329208832 3)tan(x/2) =Ce^t …