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 2d awarded Popular Question Jan27 awarded Favorite Question Dec24 awarded Nice Question Nov1 awarded Popular Question Aug13 awarded Yearling Jul2 awarded Curious Mar30 awarded Famous Question Feb4 comment Prove that $[\log(2x-3) / \log x] + [\log_x(x+6) / \log_{x+2} x] = 1$ It is not about substituting for x, it is about trying to find that value of x which when substituted for x would satisfy this inequality. Just about any value wouldn't satisfy this inequality Feb4 comment How to know difference between sum of numbers? Basically I have done the same. I just wanted to make it sound simple. else the units difference would have been 30 and the tens 330, just where am adding the units 3 difference in 60-69 changes, nothing else. But yes you are right Feb4 answered How to know difference between sum of numbers? Dec10 revised Chebychev's formula with upper bound tex syntax Dec10 suggested approved edit on Chebychev's formula with upper bound Oct29 awarded Nice Question Oct13 comment Limit: $\lim_{x\to\infty} \sqrt{x+\sqrt{x}}-\sqrt{x}$ Try L'Hospital's rule Oct3 awarded Popular Question Sep25 awarded Notable Question Aug31 awarded Good Question Aug13 awarded Yearling Apr21 comment Determine unkown scalars with given vectors is it not µ3*v3 ? Mar7 awarded Popular Question