1.
f:[1,3]Rf : [1, 3] \to \mathbb{R} is a function defined as f(x)=x3+ax2+bxf(x) = x^3 + ax^2 + bx. If f(1)f(3)=0f(1) - f(3) = 0 and f(23+13)=0f'\left(\frac{2\sqrt{3}+1}{\sqrt{3}}\right) = 0, then aba - b is equal to
Limit, Continuity and Differentiability - Hard - Question