Calculate ∫z ln(1 × 2) dx. First, use integration by parts to get rid of the logarithm.
a) ∫z(x ln(1) - x ln(2)) dx
b) ∫z(ln(1) - ln(2)) dx
c) ∫z(x ln(1) + x ln(2)) dx
d) ∫z(ln(1 × 2)) dx