i keep getting 2ln|(x/2)-(sqrt(x^2-4)/2)|+c but the the correct answer isnt divided by two inside the ln.
Follow Math Help Forum on Facebook and Google+
Originally Posted by cmm1863 i keep getting 2ln|(x/2)-(sqrt(x^2-4)/2)|+c but the the correct answer isnt divided by two inside the ln. See what WolframAlpha does (though you may want to put absolute values in the logs):
Originally Posted by cmm1863 i keep getting 2ln|(x/2)-(sqrt(x^2-4)/2)|+c but the the correct answer isnt divided by two inside the ln. You can multiply inside the log by whatever you want, it results in a different additive constant at the end: $\displaystyle \ln(k f(x))=\ln(f(x))+\ln(k)$ CB
View Tag Cloud