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(i) For any integer a, what is (–1) × a equal to?(ii) Determine the integer whose product with (–1) is(a) –22(b) 37(c) 0

3.  (i) For any integer a, what is (–1) × a equal to?
     (ii) Determine the integer whose product with (–1) is
         (a) –22        (b) 37        (c) 0

Answers (1)
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(i) For any integer a, (-1) \times a = -a , i.e, the additive inverse of the given integer.

(ii) The integer whose product with (-1) gives the following are:
\\ (a)\ -22 : 22 \\ (b)\ 37 : -37 \\ (c)\ 0 : 0

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