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Trignometry

Cool goIITian

 Joined: 25 Sep 2010 Post: 85
30 Jan 2011 21:27:50 IST
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in a triangle, range of sinA/(sinB+sinc)
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Trigonometry

in a triangle,range of sinA/(sinB+sinc)

Cool goIITian

Joined: 25 Sep 2010
Posts: 85
30 Jan 2011 21:28:47 IST
0 people liked this

common!!some one atleat!

Forum Expert
Joined: 28 Feb 2007
Posts: 2217
31 Jan 2011 16:46:13 IST
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quite obviously (0,1).

If b and c are equal, you can make a as small as you please (as we only need a>b-c)

If a is very large then . But again from triangle inequality a<b+c. Hence the range is (0,1)

Cool goIITian

Joined: 25 Jan 2011
Posts: 34
31 Jan 2011 20:33:05 IST
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in a triangle find the range of,a/(b+c) + b/(c+a) + c/(a+b) ?

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