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Q)Let a,b,c be rational numbers and f:Z-->Z be a function given by f(x)=ax 2 + bx+c.Then,a+b is a negative integer an integer non-integral rational number None

Q)Let a,b,c be rational numbers and      f:Z-->Z  be a function given by f(x)=ax2 + bx+c.Then,a+b is 
  1. a negative integer
  2. an integer
  3. non-integral rational number
  4. None

Grade:11

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