Question

Bantu dong kak 23 point...

Answer 1

-1 < (x+1)/(x-1) < 1

saat x > 1 =  3/1, 4/2, 5/3,.......(n+1)/(n-1)

saar x < 1 = -1/1 , 0 , 1/3, 2/4, 3/5, 4/6 ... mendekati 1

maka x < 0.........opsi C