If y=log (x (x2 1)), then nth derivative of y is ? – McqOptions

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1.	If y=log (^x _{(x² 1)}), then nth derivative of y is ?
A.	(-1)<sup>(n-1)</sup> (n-1)!(x<sup>(-n)</sup> + (x-1)<sup>(-n)</sup> + (x+1)<sup>(-n)</sup>)
B.	(-1)<sup>n</sup> (n)! (x<sup>(-n-1)</sup> + (x-1)<sup>(-n-1)</sup> + (x+1)<sup>(-n-1)</sup>)
C.	(-1)<sup>(n+1)</sup> (n+1)!(x<sup>(-n)</sup> + (x-1)<sup>(-n)</sup> + (x+1)<sup>(-n)</sup>)
D.	(-1)<sup>n</sup>(n)! (x<sup>(-n-1)</sup> + (x-1)<sup>(-n+1)</sup> + (x+1)<sup>(-n+1)</sup>)
Answer» B. (-1)<sup>n</sup> (n)! (x<sup>(-n-1)</sup> + (x-1)<sup>(-n-1)</sup> + (x+1)<sup>(-n-1)</sup>)

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