11 tan 2x C 2 2 7 1 log x 1 C 8 log x x a C 9 log tanx tan x 4 C 10 log x 1 x 2x 2 C 6 13 log x 2 3x 2 C 15 logx 4 a b 2 16 2 2x x 3 C 18 log 3x 2x 1 20 x a x b C 6 log x 2 x 1 12 sin 9 19 6 9x 20 og x 2 x 9x 20 C C C 21 x 2x 3 log x 1 x 2x 3 C 22 log x 21 5 76108 1 6 1 2log x 1 C C X Rationalised 2023 24 23 5 x 4x 10 7log x 2 x 4x 10 C 24 B 25 B EXERCISE 7 5 1 log 3 log x 1 5log x 2 4log x 3 C 4 log x 1 2log x 2 log x 3 C 2 log 6 x go to he rept dished ANSWERS pe 443