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If f(x)=(4x-3)/(6x-4),xne2/3,g:R-{2/3}to...

If `f(x)=(4x-3)/(6x-4),xne2/3,g:R-{2/3}toR-{2/3},g(x)=fof(x)` then value of gogog(4) is equal to

A

`-19/20`

B

`19/20`

C

`-4`

D

4

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