Question: (a) If y is Np(O, E), then 3/ Ay is x2(r) if and only if AX is idempotent of lank r.

(a) If y is Np(O, E), then 3/ Ay is x2(r) if

and only if AX is idempotent of lank r.

(a) If y is Np(O, E), then 3/ Ay is x2(r) if and only if AX is idempotent of lank r.

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