Materi Logaritma jawab dengan penjelasan

Materi Logaritma dasar <<<<<<
Perbaikan yg jwb prtama:
Pada pembilang:
log 225 akar 15 = log 15^(5/2)
Sehingga
(5/2 log 15) / log 15
Coret log 15
Hasil akhir = 5/2 = 2,5 (D)

No.30
=log5√5+log√3+log45/log15
=log(5×45)(√5×√3)/log15
=log225√15/log15
=log 15².15½/log 15¹= 2+1/2= 5/2 =2,5
No.31
=²log√6+²log1/24-⁴log48+⁴log36
=²log√6+²log1/24-²log√48+²log6
=²log(√6/24)×(6/√48)
=²log(6√6/24√48)
=²log(1/4×√1/8)
=²log(1/4×1/2√2)
=²log(1/8√2)
=²log(2^-3-1/2)
=-3-1/2 = -7/2