The sides of a triangle are

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

\alpha - \beta

\alpha + \beta

and

\sqrt{3\alpha^2 + \beta^2}

, (

\alpha > \beta > 0

). Its largest angle is (1)

\frac{2\pi}{3}

(2)

\frac{\pi}{2}

(3)

\frac{3\pi}{4}

(4)

\frac{5\pi}{6}