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The domain of the function 11+2sinx is

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a
R=nπ+−1n7π6,n∈z
b
R=nπ+−1n3π6,n∈z
c
R=nπ+−1n5π6,n∈z
d
R=nπ+−1nπ6,n∈z

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detailed solution

Correct option is A

To definef (x), we must have  1+2sin⁡x≠0 or  sin⁡x≠−12 or x≠nπ+(−1)n7π6,n∈ZHence, the domain of the function isR−nπ+(−1)n7π6,n∈Z


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