1.Show that the roots r,s,tr, s, tr,s,t of the cubic x(x−2)(3x−7)=2x(x-2)(3x-7) = 2x(x−2)(3x−7)=2 are real and positive. Also compute the value of tan−1(r)+tan−1(s)+tan−1(t)\tan^{-1}(r) + \tan^{-1}(s) + \tan^{-1}(t)tan−1(r)+tan−1(s)+tan−1(t).a.π/2\pi/2π/2b.3π/43\pi/43π/4c.5π/45\pi/45π/4d.2π2\pi2πLogin to continueOnly logged in users canattempt or see the solution.
