Elip (E): \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{...

Câu hỏi: Elip (E): \(\frac{{{x^2}}}{{25}} + \frac{{{y^2}}}{9} = 1\) có tâm sai bằng bao nhiêu?

A. \(\frac{4}{5}\)

B. \(\frac{5}{4}\)

C. \(\frac{5}{3}\)

D. \(\frac{3}{5}\)