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25. Let z be the set of all integers and A={(a, b) :a2+3b2=28,a,bz} B={(a, b) :a>b,a,bz},then n(AB) is equal to |
| Answer» 25. Let z be the set of all integers and A={(a, b) :a2+3b2=28,a,bz} B={(a, b) :a>b,a,bz},then n(AB) is equal to | |