Question: Solve for this number 2 question iii. Is D an ideal of C? 2. A ring R has the property r? = r for each

Solve for this number 2 question

Solve for this number 2 question iii. Is D an ideal of

iii. Is D an ideal of C? 2. A ring R has the property r? = r for each r E R. Show that char R = 2 and R is a commutative ring

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