diketahui f(x)=x+1 dan g(x)= x/x2+6x+5 . tentukan rumus fungsi fog(x)

f o g (x)
= (x/x²+6x+5) + 1

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#Semoga bermanfaat ^_^

fog(x) = {(x) / (x²+6x+5)} - 1
= {(x)/(x²+6x+5)} - {(x²+6x+5)/(x²+6x+5)}
= {x - (x²+6x+5)} / (x²+6x+5)
= (-x² + x - 6x - 5) / (x² + 6x + 5)
= (-x² - 5x - 5) / (x² + 6x + 5)