3. Prove that 0 divides an integer a if and only if a 0.(In your proof. you can freely ILNE your prior knowledge on integers without giving a reference.)

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A: Legranges interpolation, to find the function value at point

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Q: 13. What is the value of x? 24 36 12 Ox= 8 %3D Ox= 12 %3D Ox= 6 %3D Ox= 2

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A: Que  Ans:     P(x) is 4 degree polynomial          with   roots 4, - 2 , 3i,  - 3i Implies that…

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