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If f: R-{7/5}->R-{3/5} be defined as f(x...

If `f: R-{7/5}->R-{3/5}` be defined as `f(x)=(3x+4)/(5x-7)` and `g: R-{3/5}->R-{7/5}` be defined as `g(x)=(7x+4)/(5x-3)` . Show that `gof=I_A` and `fog=I_B` , where `B=R-{3/5}` and `A=R-{7/5}` .

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