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

Explanation

(i) For any integer a,` (-1) ×` a is equal to - a,

So,`( -1 )×` a = `- `a



(ii) `(a) ? × (-1) = -22`

Let, a be the required integer


thus,`a × (-1) = -22 -------- (1)`

`=> -a = -22`

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