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Given the advection equation au the truncation error for Leiths method is calculated by approximating TE = u(xi.tk +1)-4(Xi,
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2nd term : AL (ri, tk) 3rd term Vbtu Δ72 y2at Γυ(Xi+hĩ.tk ) _ u (x,, tk ) +uĺz,.-az, tk ) Δ,22 Hence option (8) is the corre

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