The ODE y"+siny=0 cannot be solved using Laplace transform because (i) The given ODE is nonlinear (ii) The ODE is homogeneous (iii) The initial conditions are not provided.
Question
The ODE y"+siny=0 cannot be solved using Laplace transform because
(i) The given ODE is nonlinear
(ii) The ODE is homogeneous
(iii) The initial conditions are not provided.
Solution
The correct answer is (i) The given ODE is nonlinear.
The Laplace transform is a powerful tool that is used to solve linear ordinary differential equations (ODEs). However, it cannot be used to solve nonlinear ODEs. The given ODE y"+siny=0 is a nonlinear ODE because of the sine function.
Option (ii) is incorrect because whether an ODE is homogeneous or not does not affect the ability to use the Laplace transform.
Option (iii) is also incorrect because the Laplace transform can be used to solve ODEs without initial conditions. However, without initial conditions, the solution will be a general solution, not a particular solution.
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