If you don't know L'H rule, then you can be sure that you didn't use it.
Not true! I think what he meant was he's not familiar what "L'hopitals rule" refers to so he wouldn't know if he was using it. Just like a lot of people forget the transiative and associative property are, but they use them every day. You know the property, but forget the name.
Anyway, thanks Numen for the solution. you often forget you can factor out an x in an expression like x + 1. That also causes the appearance of terms like 1/x^n which are valuable in limit problems. Thanks again!
]]>If f(x) goes to 0 and g(x) goes to 0 as x goes to c, then:
But yes, it must be that f(x) and g(x) both go to 0 or +/- infinity.
]]>If f(x) goes to 0 and g(x) goes to 0 as x goes to c, then:
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