nilai dari ³log 7 3³log 3+½³log 81-³log 63 adalah… -

³log 7 - 3 ³log 3 + 1/2 ³log 81 - ³log 63 = ³log 7 - ³log 3³ + ³log 81^(1/2) - ³log 63
= ³log 7 - ³log 27 + ³log √81 - ³log 63
= ³log 7 - ³log 27 + ³log 9 - ³log 63
= ³log (7:27x9:63)
= ³log 1/27
= ³log 1/3³
= ³log 3⁻³
= -3 ³log 3
= -3

Source https://sebuahcatatan.live/as/catatanbrain/tugas/2128154