Question

Di ketahui
log 2= 0, 3010
log 3= 0, 4771
log 7= 0,8451
tentukan!
1. log 18
2. log 21

Answer 1

Log 18 = log (9x2) = log 9 + log 2=Log 3^2 + log 2= 2. log 3 + log 2
2x0,4771+0,3010= hitung sendiri yaaaa
log 21= log (7x3)=log 7 + log 3= 0,8451 + 0,4771=hitung sendiri yaaaa