Question

1.)jika log 2=a,log 3=b,log 5=c,
log 150=?
2.)jika ⁴log5=p,⁴log28=q, tentukan ⁴log70?

jawab dengan caranya!

Answer 1

1. Log 150 = log 2.3.25 = log 2 + log 3 + log 25 = a + b + log 5^2 = a + b + 2. log 5 = a + b + 2c 2. 4Log 70 = 4log 5.14 = 4log 5 + 4log 14 = p + q -1/2 Syarat : 4log 28 = q 4log 2.14 = q 4log 2 + 4log 14 = q 2^2log 2 + 4log 14 = q 1/2 . 2log 2 + 4log 14 = q 1/2+ 4log 14 = q 4log 14 = q - 1/2

Answer 2

1. log 150
= log 2. 3. 5. 5
= log 2 + log 3 + log 5 + log 5
= a + b + c +c
= a + b + 2c

2. maaf belum bisa