Answer :

We know that √x × √y = √xy

(i ) √3 × √12 = √3×12 = √36 = 6 Natural number


(ii) √3 × √1.2 = √3×1.2 = √3.6 = 6√0.1 Not a natural number or fraction


(iii ) √5 × √8 = √5×8 = √40 = 4√10 Not a natural number or fraction


(iv) √0.5 × √8 = √0.5×8 = √4 = 2 Natural number


(v ) √ × √ = Natural number


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