Question

Diketahui 5 log 4 = p dan 3 log 5 = q maka 3 log 80 adalah

Answer 1

3 log 80 = c log 80 / c log 3
= 5 log (16.5) / 5 log 3
= 5 log 16 + 5 log 5 / 5 log 3
= 5 log (4.4) + 1 / 1 / 3 log 5
= 5 log 4 + 5 log 4 + 1 / 1 / q
= p + p + 1 / 1 / q
= 2 p + 1 x q