CUSAT 2021 BTech Solved Paper Shift 1

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Question : 147 of 250

Marks: +1, -0

Which of the following functions is nonperiodic?

f(x)=x−[x]
f(x)={
1‌ if ‌x‌ is a rational number ‌
0‌ if ‌x‌ is an irrational number ‌
.
f(x)=√‌
8
1+cos‌x
+‌
8
1−cos‌x
log(1+|x|)

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