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Which of these is wrong for the Lax-Wendroff technique?

Which of these is wrong for the Lax-Wendroff technique? Correct Answer It is simple to solve

Lax-Wendroff technique uses the finite difference method to get time-dependent solutions. The need for linearization depends upon the equation to be solved. Simultaneous equations are not required as the resulting system is explicit. But the system is not simple to solve. It involves lengthy algebra to get the second order terms.

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