Which of the following functions are ide...

Which of the following functions are identical? `(a)f(x)=1nx^2a n dg(x)=21nx` `(b)f(x)=(log)_x ea n dg(x)=1/((log)_e x)` `(c)f(x)="sin"(cos^(-1)x)a n dg(x)="cos"(sin^(-1)x)` `(d)non eoft h e s e`

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