Javier Badia
Reputation
3,410
Top tag
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
2 11 38
Newest
Impact
~113k people reached

• 7 helpful flags
• 281 votes cast

# 128 Posts

 Sep23 answered What is the relevance of the supremum in this question? Sep23 asked How do you explain the appearance of a sine in the integral for calculating the surface area of a sphere? Sep20 answered Showing vectors span a vector space by definition Sep18 answered Basic set questions Sep8 answered Simplifying expression with absolute value and unknown Aug22 answered In eigenvector calculations, why does $A-\lambda I$ need to be singular? Aug21 answered Graph $f(x)=\ln x+2$ Aug10 asked Basic group theory exercise Aug6 answered Projectile Motion Jul29 answered Finding $a$ from $\lim\limits_{x\rightarrow0}(1+a\sin x)^{\csc x} =4$ Jul25 asked Having trouble understanding proof of a theorem involving limits of functions and sequences Jul15 asked Motivation for definition of logarithm in Feynman's Lectures on Physics Jul14 answered Problems regarding exponents Jun30 asked Does this weird sequence have a limit? Jun23 asked If a function has a finite limit at infinity, does that imply its derivative goes to zero? Jun4 asked How do we know that $\exp(x)$ agrees with raising a number to a rational power? Jun1 asked Proving that $\lim\limits_{x \to 0}\frac{e^x-1}{x} = 1$ May26 answered How to show $|\sin(x+iy)|^2=\sin^2x+\sinh^2y$ May17 asked Confused about Wikipedia page on differential forms May4 asked How to prove $\lim_{(x,y)\to(0,0)} \frac{xy}{x+y} = 0$