Which of the following is equivalent to ln(x2y) - 2 ln(xy) + 3 ln y?

Question

A - 0

B - In x + In y

C - 2 In y

D - 2 In x + 2 In y

E - In x + 2 In y

Answer 1

ln(x²y) - 2 ln(xy) + 3 lny = ln{[x²y / (xy)²] y³} = ln[(1/y)y³] = lny² = 2 lny