Question

Sederhanakan dan tentukan nilainya
1. log2+log18-log6+log5-log3
2. 7log8+7log9-7log5+7log10-7log14,4-7log10/7

Answer 1

1)
log {(2 x 18 x 5) : (6 x 3)}
log 10
= 1

2)
7log {(8 x 9 x 10 ) : (5 x 14.4 x 10/7)
7log (720 : 720/7)
7log 7
= 1

Cek lagi yaa, takut ada yg salah :3