1.f:[1,3]→Rf : [1, 3] \to \mathbb{R}f:[1,3]→R is a function defined as f(x)=x3+ax2+bxf(x) = x^3 + ax^2 + bxf(x)=x3+ax2+bx. If f(1)−f(3)=0f(1) - f(3) = 0f(1)−f(3)=0 and f′(23+13)=0f'\left(\frac{2\sqrt{3}+1}{\sqrt{3}}\right) = 0f′(323+1)=0, then a−ba - ba−b is equal toa.555b.−17-17−17c.434\sqrt{3}43d.−23-2\sqrt{3}−23Login to continueOnly logged in users canattempt or see the solution.