## Explicit and exact solutions to cubic Duffing and double-well Duffing equations.(English)Zbl 1217.34004

Summary: A kind of explicit exact solution of nonlinear differential equations is obtained using a new approach applied in this case to look for exact solutions of the Duffing and double-well Duffing equations. The new proposed procedure is applied by using a quotient trigonometric function expansion method. The method can also be easily applied to solve other nonlinear differential equations.

### MSC:

 34A05 Explicit solutions, first integrals of ordinary differential equations
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### References:

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