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Q.

The domain of x3·cotx is 

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a

R{x/x=nπ,nZ}

b

R

c

R-0

d

R+

answer is C.

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Detailed Solution

The given function is x3·cotx

In the above funciton x3 has no restriction

but cotx=cosxsinx, and sinx is not defined at multiples of π

Hence, The domain of the function x3·cotx is R{x/x=nπ,nZ}

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