Use the approximations In 2 ≈ 0.693 and In 3 ≈ 1.099 together with the properties stated in Theorem A to calculate approximations to each of the following. For example, In 6 = ln(2 ∙ 3) = In 2 + In 3 ≈ 0.693 + 1.099 = 1.792.
(a) In 6
(b) In 1.5
(c) In 81
(d) In √2
(e) In(1/36)
(f) In 48