Let f:Z×Z to Z, f(a,b)=ab,(a,b)belong to Z×Z.examine if f is injective, surjective
Let f:Z×Z to Z, f(a,b)=ab,(a,b)belong to Z×Z.examine if f is injective, surjective
A cylindrical pipe of diameter of 4 cm and water flows through it at the rate of 20 m per min .How long would it take to fill a conical tank of radius 40 cm and depth 72 cm