f(x)=x+3/x-3 dengan x ≠ 3 . nilai dari f=(1/5)

jawab

f(x) = (x + 3)/ ( x- 3)

f(1/5) = (1/5 + 3)/ (1/5 - 3) =.....kalikan 5/5
= (1+ 15)/(1 - 15)
= 16/14
= 8/7