1.

If the straight line `a x+c y=2b ,`where `a , b , c >0,`makes a triangle of area 2 sq. units with the coordinate axes, then`a , b , c`are in GPa, -b; c are in GP`a ,2b ,c`are in GP (d) `a ,-2b ,c`are in GPA. a,b,c are in GPB. a,-b, c are in GPC. a,2b,c are in GPD. a,-2b, c are in GP

Answer» Correct Answer - A::B
The area of the triangle is given by
`(1)/(2) xx (2b)/(a) xx (2b)/(c) = (2b^(2))/(ac) = 2`
`"or " b^(2) = ac`
Therefore, a,b,c are in GP. So, a,-b, c are alos in GP.


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