Find ∫7zdz\int \frac{7}{z} dz∫z7dz for z>0z > 0z>0.
7ln∣z∣+C7\ln|z| + C7ln∣z∣+C
7z2+C7z^2 + C7z2+C
ln(7z)+C\ln(7z) + Cln(7z)+C
7z2+C\frac{7}{z^2} + Cz27+C