Reciprocal integral (∫ dx/x = ln|x| + C, x ≠ 0)

jee-mainjee-advanced

∫ dx/x = ln|x| + C, x ≠ 0

What each symbol means

SymbolWhat it stands for
CConstant of integration
xNonzero independent variable

When to use this

Domain splits x<0 and x>0; |x| encodes both branches.