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WBJEE 2014 Maths Solved Paper

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Question : 38 of 80
 
Marks: +1, -0
Suppose that the equation f(x) = x2 + bx + c = 0 has two distinct real roots α and β. The angle between the tangent tothe curve y = f(x) at the point (
α+β
2
,f(
α+β
2
)) and the positive direction of the x-axis is
Validate
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