SOLUTION:
…….(i)
Comparing coefficients of 
on both sides A + B = 1 …..(ii)
Comparing constants 2A + B = 0 …..(iii)
Solving eq. (ii) and (iii), we get A = 
and B = 2
Putting these values of A and B in eq. (i),
=−log|x+1|+2log|x+2|+c=−log|x+1|+2log|x+2|+c
= 
= 