Statement I If both roots of the equation 4x^2 - 2x + a = 0, a ∈ R lie in the interval (-1, 1)
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1.D should be greater than or equal to zero.
2.f (-1)>0
3.f (1)>0
4.-1 <-b/2a>1
Solve 1,2,3,4 and at last take intersection of all four answers.
2.f (-1)>0
3.f (1)>0
4.-1 <-b/2a>1
Solve 1,2,3,4 and at last take intersection of all four answers.
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