Vittorio Romeo
Reputation
Next privilege 250 Rep.
 Sep 4 awarded Scholar Sep 4 accepted Integral of square root of a fraction of two functions Sep 4 accepted Set membership and inclusion confusion Jun 25 asked Strategy in solving linear equations with 3 unknown variables Jan 31 comment Integral of square root of a fraction of two functions If I substitute $\frac{x^2-1}{x^2-4}$ with $t^2$ then calculating $dt$ results in a hard-to-simplify derivative. I don't see how I could move on afterwards. Could you please show some extra steps? Jan 31 asked Integral of square root of a fraction of two functions Oct 8 comment Set membership and inclusion confusion Thanks for the reply. As far as I understand, basically, infinitely nesting an element into a set is equal to the element itself, correct? $\{\{\{...\{1\}...\}\}\} = 1$ --- Also, I'm having a lot of trouble understanding how $\{1\} = 2$. Can you elaborate on that, please? Oct 8 awarded Student Oct 8 asked Set membership and inclusion confusion Oct 8 awarded Informed Aug 28 awarded Supporter Jun 11 awarded Autobiographer