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2016-04-12T00:13:32+05:30

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1) 1 ÷ a = 1
In this problem a = 1.

2) a ÷ -1 = -a
In this problem any positive integer that is used as the value of a will have a value of -a.
If negative integer is used as the value of a then its answer will be positive a and not -a.
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2016-04-12T09:27:50+05:30
(i) 1 ÷ a = 1 is not true
Proof:

Let a = 2
= 1÷2
 \frac{1}{2}
≠ 1

(ii) a ÷ (–1) = – a is true.
Proof:

Let a= 5
= 5 ÷ (–1)
 \frac{5}{-1}
= -5
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