true or false log(x+y)-logy=logx
False. That is not how properties of logs works. log(xy)=logx+logy, not log(x+y)=logx+logy.
log(x + y) - logx = logxBy 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.