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Question

Assertion(A) : Period of exe[x] is 1.
Reason(R) : Period of x[x] is 1.

A
A is true , R is true. R is the correct explanation of A
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B
A is false, R is false
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C
A is true, R is true and R is not correct explanation of A
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D
A is true, R is false.
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Solution

The correct option is A A is true , R is true. R is the correct explanation of A
Assertion (A) :
f(x)=exe[x],[x]=x{x}
f(x)=ex[x]
=e{x}
period of {x}=1
Period of e{x}=1 True.
Reason (R) :
Period of x[x] is 1.
x[x]={x}
We know, period of {x}=1 True
So, A is True, R is True and R is correct explanation of A.

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