log x + log 5=2 log 3 find x
Answers
Answered by
23
Log x + log 5 = log 5x
2log 3 = log 3^2 = log 9
Log 5x = log 9
Taking antilog for x >0
5x = 9 or x = 1.8
2log 3 = log 3^2 = log 9
Log 5x = log 9
Taking antilog for x >0
5x = 9 or x = 1.8
Answered by
6
x= 4
log x+log 5=2log3
log(x+5)=log3^2
x+5=9
x=9-5
x=4
log x+log 5=2log3
log(x+5)=log3^2
x+5=9
x=9-5
x=4
Similar questions