Try Out Matematika IPA 2019
Soal dan Pembahasan Try Out Matematika IPA 2019
Jawaban Try Out Matematika IPA 2019
3.Hasil dari (3log25 . 5log 81 - 4log 2) / (3log36 - 3log 4) = ...
A. 11/4
B. 15/4
C. 17/4
D. 11
E. 15
Jawaban : B
3log25 . 5log 81 - 4log 2
= 3log52 . 5log 34 - 4log 2
= 2 . 4
= 8 - 2^2log 2
= 8 - 1/2 . 1
= 15/2
3log36 - 3log 4
= 3log(9.4) - 3log 4
= 3log9 + 3log4 - 3log 4
= 3log9
= 3log32
= 2
(3log25 . 5log 81 - 4log 2) / (3log36 - 3log 4)
= 15/2 / 2
= 15/4
>>Nomor 4
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