Coordinate Geometry
Posted November 10th, 2009 by alpha
A line passing through P(3,1)meet the coordinate axes at A and B .It is given that the distance of this straight line from the origin 'O' is maximum.Area of the triangle OAB is equal to-15
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solution
Area = 9 * (10/3) * (1/2) = 15
The correct answer is 50/3 unit^2
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``Old theorems never die; they turn into definitions.''
----E. Hewitt
You are right!
I have missed one unit on Oy axis so you have (1+9)*(10/3)*(1/2)=50/3 square units.
''ALPHA" =)