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University of Florence


1d
answered Are there contradictions in math?
1d
answered I want, by the use of the equation of the line in complex plane, to find the slope and x intercept in x-y plane
1d
comment Max and Min using Lagrange Multipliers
sure... I was mislead by the OP
1d
revised Max and Min using Lagrange Multipliers
added 1 characters in body
1d
answered Max and Min using Lagrange Multipliers
Apr
10
awarded  Nice Question
Apr
8
reviewed Approve suggested edit on Can't solve this Diffrential Equation
Apr
1
comment Do I Have To Explicitly Define Points/Lines/Planes?
Did you use colors in your assignment?
Apr
1
revised Do I Have To Explicitly Define Points/Lines/Planes?
edited body
Mar
31
comment What is 48÷2(9+3)?
@mach as I said: multiplication and division have the same precedence and evaluate left to right.
Mar
30
revised Differentiability of Trig Functions
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Mar
30
answered Differentiability of Trig Functions
Mar
30
revised integration of sum of $f$ and its inverse
added 1 characters in body
Mar
30
answered integration of sum of $f$ and its inverse
Mar
29
reviewed Approve suggested edit on Binormal vector, $B(t)$, is independent of $t$?
Mar
29
comment Denseness of a set, whose complement is known to be dense.
Yes. Closure is a concept which is relative to the ambient space. If your space is $X=(0,2) \subset \mathbb R^n$, then $(0,1]$ is a closed subset of $X$.
Mar
29
revised Normal vector of $\Gamma \times \mathbb{R}^+$ where $\Gamma$ is compact hypersurface
added 389 characters in body
Mar
29
comment Denseness of a set, whose complement is known to be dense.
@ellya: the closure of a set cannot be larger than the ambient space. If you consider $X$ as a topological space, then the closure of $U$ is $X$.
Mar
29
answered Normal vector of $\Gamma \times \mathbb{R}^+$ where $\Gamma$ is compact hypersurface
Mar
29
answered Why is the cos, sin definition of the unit circle true?