(c) Given equation is $\frac{x^{2}}{16} - \frac{y^{2}}{25} = 1$ $\therefore\ e = \ \sqrt{1 + \frac{b^{2}}{a^{2}}} = \sqrt{1 + \frac{25}{16}} = \frac{\sqrt{41}}{4}$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.