Type the correct answer in the box. Use numerals instead of words. Consider this geometric series.
4 + 12 + 36 + 108 + ...
The sum of the first
terms in the series is 4,372.

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)