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Question

Verify that (x)=x for
(i) x=1115 (ii) x=1317

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Solution

Given identity (x)=x.....(i)
(i) For x=1115
Consider, L.H.S:(x)=(1115)
=1115 (Since, (a)=a)
=x
= R.H.S
Thus,(x)=x verifies for x=1115.
(ii) For x=1317
Consider, L.H.S:(x)=(1317)
=1317 (Since, (a)=a)
=x
=R.H.S
Thus, (x)=x verifies for x=1317


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