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Question : 136 of 150
Marks:
+1 ,
-0
Solution:
Let
f ( x ) = x ( − 1 ) [ 1 ∕ x ] Here,
[ ‌ ] is a greatest integer function which gives either positive integer or negative integer.
Then,
f ( x ) = x ( − 1 ) ‌ odd integer ‌ or
x ( − 1 ) ‌ even integer ‌ .
∴ x ( − 1 ) [ 1 ∕ x ] = x ( − 1 ) ‌ odd integer ‌ or
x ( − 1 ) ‌ even integer ‌ = 0 © examsiri.com
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