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If f:RR -{(7)/(5)} rarr RR-{(3)/(5)} be ...

If `f:RR -{(7)/(5)} rarr RR-{(3)/(5)}` be defined as `f(x)=(3x+4)/(5x-7)` and `g:RR- {(3)/(5)} rarr RR -{(7)/(5)}` be defined as `g(x)=(7x+4)/(5x-3)` .Then find `f o g` .

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