1.

If m_1,m_2 " are the roots of the equation " x^2-ax-a-1=0, then the area of the triangle formed by the three straight line y=m_1,x,y=m_2x and y=a(ane -1) is

Answer»

`(a^2(a+2))/(2(a+1)), ifagt-1`
`-(a^2(a+2))/(2(a+1)), ifagt-1`
`-(a^2(a+2))/(2(a+1)), if -2ltalt-1`
`-(a^2(a+2))/(29(a+1)), if alt-2`

ANSWER :A::C::D


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