1.

If A=2-13-451 and B=234-215, then(a) only AB is defined(b) only BA is defined(c) AB and BA both are defined(d) AB and BA both are not defined

Answer» If A=2-13-451 and B=234-215, then



(a) only AB is defined

(b) only BA is defined

(c) AB and BA both are defined

(d) AB and BA both are not defined


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