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5h
comment On any continuous map $f:S^1 \to \mathbb R$
@PVAL: Does that clarify my statement?
7h
comment On any continuous map $f:S^1 \to \mathbb R$
@PVAL: I'm showing that for each $y\in L_2$ there is a corresponding $x\in L_1$ so that $f(x)=f(y)$. By construction, $x\neq y$. In essence, I'm saying that there is a subset of $L_1$, call it $Z$, so that $Z\times L_2\subseteq A$, hence $A$ is uncountable.
8h
answered On any continuous map $f:S^1 \to \mathbb R$
11h
comment Finding a point with $f(x)=f'(x)$
There are some issues with the wording in your post, user118494. Do you mind clarifying if you want the existence of $x_0\in(0,1)$ such that $f'(x_0)=f(x_0)$ or if you want the equation to be satisfied for all possible $x$?
1d
comment How do you calculate an area enclosed by four tangents by using the integration method?
What have you tried?
2d
revised Write integral of sin as a multiple
fixed the TeX formatting
2d
awarded  Nice Answer
2d
reviewed Reject Curl of a vector field cross itself
2d
reviewed Close Probability, step function
2d
reviewed Close linear algebra and solving for one solution..
2d
reviewed Close What is the limit of this sequence as n->infinity?
2d
reviewed Close How to derive the relation $T=S_1$ for the equation of a chord of an ellipse whose midpoint is given?
2d
reviewed Leave Open Normal distribution calculations
2d
reviewed Close How to prove an identity (Trigonometry Angles--Pi/13)
2d
reviewed Close Math replacing natural language
2d
reviewed Reject Connected sum in an ambient space
2d
comment Integral upper bound
@DavidC.Ullrich: You are correct! My apologies 0.o haha, I wasn't thinking, just 'mathing'
2d
revised Proving convergence for a series.
deleted 3 characters in body
2d
comment Proving convergence for a series.
@user3002473: You're correct; I had initially planned on skipping the writing of that step but second-guessed myself and went ahead and put it up there. I'll change it now, thanks.
2d
answered Proving convergence for a series.