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Q66Section I (Objective (Q1–Q80))66 of 80

Numerical Analysis — forward and backward operator identities

Consider the following statements in respect of forward and backward operators (Δ\Delta and ∇\nabla): I. Δ−∇=Δ∇\Delta - \nabla = \Delta\nabla II. ∇−Δ=∇Δ\nabla - \Delta = \nabla\Delta III. Δ+∇=Δ∇\Delta + \nabla = \Delta\nabla IV. Δ+∇=−ΔΔ\Delta + \nabla = -\Delta\Delta Which of the statements given above is/are correct?

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