About how mathematics compares the sizes of ln1-2 and ln3-1, Can LNX images be drawn

About how mathematics compares the sizes of ln1-2 and ln3-1, Can LNX images be drawn

Because ln1 = 0
So we only need to compare the size of - 2 and ln3-1, and Ln3 > 0, so ln3-1 > - 1 > - 2 > ln1-2
So ln3-1 > ln1-2