Question

Let ( u=log x cdot ) Then ( d u=frac{1}{x} d x )
( therefore int_{a}^{12} ) udu ( =frac{1}{2} v^{2}+c )
"Substituting 800 u we qut
( 3left[frac{1}{2}(operatorname{cog} x)^{2}+cright]_{a}^{b} )
( left.therefore frac{1}{2} log aright)^{2}-frac{1}{2}(log b)^{2} )

# Find: pilog* as Find : pb log & dx Ja X

Solution