Question

1268 объясните пожалуйста

Answer 1

При f(5) =4/(9-5)=4/4=1 f(3)=4/(9-3)=4/6=2/3. f(1)=4/(9-1)=4/8=1/2

Answer 2

1) f(5)=4/(9-5)=4/4=1
f(3)=4/(9-3)=4/6=2/3
f(1)=4/(9-1)=4/8=1/2


2) -4=4/(9-x)
9-x= -4/4
-x= -1-9
x=10

2=4/(9-x)
9-x=2
x=9-2
x=7