Question

Please enter a differential equation has a solution y = 3sin (4x + v). You do not need any boundary conditions

Answer 1

What's v?

Answer 2

A constant or another function of x?

Answer 3

we have to take derivatinve of this?

Answer 4

v is a constant

Answer 5

well it would be
3cos (4x+v) (4)
12cos (4x+v)
guess this might be the answer

Answer 6

no this is the solution and i want the differential equation

Answer 7

As nubeer said, the simplest DE you could probably get is the by differentiating both sides:
\[y'=12\cos(4x+v).\]

Answer 8

(-3/4)cos (4x+v)

Answer 9

@Yahya: What you wrote is the solution of the differential equation that nubeer wrote.

Answer 10

aha ok ty both :)

Answer 11

You're welcome!

Answer 12

welcome :)