Matematika

Pertanyaan

3 log 21 - 3 log 7 + 2 log 9

2 Jawaban

  • 3log21-3log7+3log9
    =3log(7.3)-3log7+3log3²
    =3log7+3log3-3log7+3log3²
    =1+2
    =3
  • 3 log 21 - 3 log 7 + 2 log 9
    3 log (21/7) + 2 log [tex] 3^{2} [/tex]
    3 log 3 + 2 (2 log 3)
    1 + 2 (2 log 3)

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