Hey infraRed.
One approach you could try is showing d/dx [ln(x+2)] < d/dx (x+2) for all x >= 1 and show that ln(1+2) < 1+2.
Hi. In comparisons, can work with logarithms in the usual manner? (Hoping, of course, my usual manner is the correct manner.)
Is this valid:
(Edit: assuming , if that matters.)