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f-¹(2x+3)=g(4x-5) ise fog (3)=?

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McCcDdrans

[tex]fog(3)=f(g(3))[/tex]

 

[tex]f^{-1}(2x+3)=g(4x-5)[/tex]

 

[tex]3=4x-5[/tex]

 

[tex]2=x[/tex]

 

[tex]g(3)=f^{-1}(7)[/tex]

 

[tex]f^{-1}(x)=y\ ise \ f(y)=x[/tex]

 

[tex]f^{-1}(7)=y\ ise \ f(y)=7[/tex]

 

[tex]f(f^{-1}(7))=y\ ise \ f(y)=7=fog(3)[/tex]

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