Tentukan hasil setiap integral berikut a. Integral 1/(4x - 1) dx b. Integral akar 12x - 9dx

gunakan integral substitusi.
a. misalkan [tex]u=4x-1\Leftrightarrow du=4dx\Leftrightarrow \frac{1}{4}du=dx[/tex]
selanjutnya,
[tex]\int{\frac{1}{4x-1}}dx=\int{\frac{1}{u}\cdot\frac{1}{4}}du=\frac{1}{4}\ln{u}+C=\frac{1}{4}\ln{(4x-1)}+C[/tex]