InterviewSolution
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InterviewSolution
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'I Did It' MathematicsMentalWrite True or False.a. Subtraction is commutative for integersb. Addition is associative for integersc. Addition identity of an integer a is-ad. On adding any integer with its additive inverse, we gete. Integers are not closed under subtraction.f. Additive identity of an integer a is 0g. Sum of two negative integers is positive inth. la-b)-ca-(b-dthe additive identityi. a+(-a)>0Exercise 1.1 |
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Answer» a) False.only addition and multiplication are commutative. subtraction is not commutativeb)True, addition is associative for integersc) False, additive identity of integers is zero as adding any number with zero gives zero.d)True, adding an integer with his additive inverse we get zero which is additive identity.e)True, integers are closed under addition but not under subtractionf) True, additive identity of an integer is 0.g) False, the sum of two negative integers is a negative integerh)True.i) False, it is equal to zero. is this answer is right Additve identity of integers is |
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