924 Example 6.12. Prove with the usual notations, that (i) hD = log (1 + 4) = -log (1 - 1) - th-'). (ii) (E12E-12(1. + A)12 = 2 +A (iii) A-V = AV = 82 (iv) Ay, = Vys 924 Example 6.12. Prove with the usual notations, that (i) hD = log (1 + 4) = -log (1 - 1) - th-'). (ii) (E12E-12(1. + A)12 = 2 +A (iii) A-V = AV = 82 (iv) Ay, = Vys