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Mathematics
Mathematics
Problem
The sides of a triangle are
α
−
β
\alpha - \beta
α
−
β
,
α
+
β
\alpha + \beta
α
+
β
and
3
α
2
+
β
2
\sqrt{3\alpha^2 + \beta^2}
3
α
2
+
β
2
, (
α
>
β
>
0
\alpha > \beta > 0
α
>
β
>
0
). Its largest angle is a.
2
π
3
\frac{2\pi}{3}
3
2
π
b.
π
2
\frac{\pi}{2}
2
π
c.
3
π
4
\frac{3\pi}{4}
4
3
π
d.
5
π
6
\frac{5\pi}{6}
6
5
π
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