Which of the following statement is correct (Difference operator)
- A. Delta(uk vk) = uk Delta vk + vk Delta uk
- B. Delta(uk vk) = vk+1 Delta uk + uk Delta vk
- C. Delta(uk vk) = vk+1 Delta uk + uk+1 Delta vk
- D. Delta(uk vk) = uk+1 Delta vk + vk Delta uk
Answer: B. Delta(uk vk) = vk+1 Delta uk + uk Delta vk
Explanation: The product rule for finite differences is Delta(uv) = u Delta v + v(k+1) Delta u. (Or equivalent forms).