Question

Jika 7log2 =a dan 2log3=b maka 6log98adalah? bantu please.. 1 lgii 3log4=p dan 5log4=q maka 4log15=...?
makasih

Answer 1

Diketahui 7log2=a , 2log3=b ,
* 7log2 x 2log3 = 7log 3
= ab
jawab : 6log98 =
7log98 / 7log6 = 7log2 + 7log7 + 7log7 / 7log2 + 7log3 = a + 1 + 1 / a + ab
= 2 + a / a + ab

Answer 2

Brarti kan log98/log6 = 2log7.2.2.3/2log3.2 = 2log7 + 2log2 + 2log2 + 2log3/2log3 + 2log2 = 1/a+1+1+b/b+1 = 1/a + 2 + b / b+1 = 1+2a+an/an+a