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Analytical Geometry

Cool goIITian

Joined:	11 Nov 2008
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8 Sep 2010 09:08:21 IST

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The points (0,8/3),(1,3)&(82,30) r the vertices ofa)noneb)obtusec)isoscelesd)acute

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The points (0,8/3),(1,3)&(82,30) rthe verticesofa)noneb)obtusec)isoscelesd)acute

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jay

Cool goIITian

Joined: 11 Nov 2008

Posts: 77

8 Sep 2010 11:42:42 IST

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When we find there determinant we get 0 these proves they arecollinear but when we take there slops two at a time then theydont come out to be equal showing they are noncollinear so whatshould i do?

Yagyadutt Mishra

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Joined: 19 Feb 2009

Posts: 1984

8 Sep 2010 15:56:02 IST

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I have solved this question in all your queries....

My issue...don't make similar thread for single topic..it seems rudiculous sometime

Solution

First of all

Don't panic after seeing big values of co-ordinate....because they are arranged in such manner..that you can easily solve it....many term will be canceled out ...

A ( 0,8/3 ) B(1,3) C ( 82,30)

Slope of AB = (3-8/3)/(1-0) = 1/3

Slope of CB = (30-3)/(82-1) = 27/81 = 1/3

And it is not possible that two side in a triangle has same slope.....so obviously this co-ordinate is not forming any triangle,,,:D

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