3 5 11 log 15 3 2 2 tan 2x C 2 x x 4x 5 6 7 x 1 log x x 1 C 8 log x x a C 9 log tan x tan x 4 C log x 1 x 2x 2 C 13 log 22 tan 16 2 2x x 3 C 18 log 3x 2x 1 19 6 x 9x 20 Jong x 2 x 3x 2 C log x b x a x b C 2 C x 2 4 9 C 6 log 6 10 12 20 4x 4sin 2 c 21 2x 3 log x 1 1 2x 3 C 5 4log x 2 2log x 1 C 2 log x 25 5 log x 1 6 6 9x 20 C 15x 1 210g x 1 C 23 5 x 4x 10 7log x 2 x 4x 10 24 B 25 B EXERCISE 7 5 C 1 log 3 log x 1 5log x 2 4log x 3 C log x 1 2log x 2 log x 3 C Rationalised 2023 24 6 6 C C log x 3 C how to be rept lished ANSWERS log a log led