3 Log 5 = a maka 25 Log 15 =....? mohon bantuannya??

^3 log5 = a
dengan sifat log

^5 log 3 = 1/a

^25 Log 15= ^5 log 15 / ^5 log 25
= ^5 log 3.5 / 2
= ( ^5 log 3 + ^5 log 5) /2
= (1/a + 1)/2
= 1/2a + 1/2
=1/2a + 1a/2a
= (1+a)/2a

semoga mmbantu

[tex]3log5 = a \\ 5log3 = \frac{1}{a} [/tex]
[tex]25log15 \\ = \frac{3log15}{3log25} \\ = \frac{3log5 + 3log3}{3log {5}^{2} } \\ = \frac{3log5 + 3log3}{2 \times 3log5} \\ = \frac{a + 1}{2 \times a} \\ = \frac{a + 1}{2a} [/tex]


maaf kalau salah