Question

Jika diketahui 2log3=a dan 3log5=b maka 15log20? please di jawab ya

Answer 1

Nih yaaaaaaaaaaaaaaaa

Answer 2

²log 3 =a
³log 2 =1/a
³log 5 =b

^15log 20
=³log 20 / ³log 15
=(³log 2²×5) / (³log 3×5)
=(2 ³log 2 + ³log 5) / (³log 3 + ³log 5)
=(2 . 1/a + b) / (1+b)
=(2/a + b) / (1+b)
=[(2+ab)/a] / (1+b)
=(2+ab) / a(1+b)
=(2+ab) / (a+ab)