Question
Which of the following is not a valid elementary operation?
Options :
Rᵢ↔Rⱼ
Rᵢ→Rⱼ+kRᵢ
Rᵢ→kRᵢ
Rᵢ→1+kRᵢ
Answer :
Rᵢ→1+kRᵢ
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