mouse0305
mouse0305 mouse0305
  • 10-01-2017
  • Mathematics
contestada

true or false log(x+y)-logy=logx

Respuesta :

tayalexlab tayalexlab
  • 10-01-2017
False. That is not how properties of logs works. log(xy)=logx+logy, not log(x+y)=logx+logy.
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olemakpadu
olemakpadu olemakpadu
  • 10-01-2017
log(x + y) - logx = logx

By laws of logarithm, logA - logB = log(A/B)

log(x + y) - logx = log((x +y)/x)

log((x +y)/x) is not equal to log x.

So the statement:

log(x + y) - logx = logx  is    False.

Hope this helps.
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