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If f1(x)=x ,f2(x)=1-x ,f3(x)=1/x ,f4(x)=...

If `f_1(x)=x ,f_2(x)=1-x ,f_3(x)=1/x ,f_4(x)=1/(1-x),f_5(x)=x/(x-x),f_5(x)=x/(x-1),f_6(x)=(x-1)/x` suppose that `f_6(f_m(x))=f_4(x)` and `f_n(f_4(x))=f_3(x),` then `m=5` (b) `n=5` (c) `m=6` (d) `n=6`

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