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Mathematics
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Gwen's user avatar
Gwen's user avatar
Gwen
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You didn't expect Gwen to like maths did you?

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9
Is 1/3 included in the sequence 0.3, 0.33, 0.333,...?
Apr 13
7
Show that triangle $ABC$ is isosceles.
Apr 18
7
Coefficient of $x^{21}$ in $(1+x+x^2+\dots+x^{10})^4$
Apr 13
6
I Think I Trisected an Angle,
Apr 21
5
Expanding $\sin(ab)$ in terms of $\sin a$ and $\sin b$.
Apr 30
5
A right-angled triangle has sides of integer length. Its area (in square metres) is twice its perimeter (in metres). What are the lengths of the sides
Apr 25
5
Is there a way to prove $\sin^{2}{A}+\sin^{2}{B}+\sin^{2}{C}\leq\frac{9}{4}$ for a triangle, without Leibniz's inequality?
Apr 1
5
Integrate $ \int_{} 1 + \tan x\tan(x+\theta) {\rm{d}}x$ quickly .
May 21
4
Summation of Binomial Coefficient containing negative r
Apr 15
4
Proving complex number equality given that $a\in \mathbb{R}$
Apr 6