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Trignometry

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27 Nov 2008 17:54:38 IST

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sol of triangles

Engineering Entrance , JEE Main , JEE Advanced , Mathematics , Trigonometry

the sides of a triangle inscribed in agiven circle subtend angle at the centre. the min value of the A.M. of is equal to

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Krishna Gopal Singh

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Joined: 29 Dec 2006

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10 Dec 2008 09:21:22 IST

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The minimum will come when alpha, beta and gamma will be equal, ie when triangle is equilateral. In that case alpha = beta = gamma=120
So answer is -sqrt(3)/2

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