Find the foci of the ellipse whose equation is given.25(x + 3)2 + 36(y + 1)2 = 900
A. foci at (-1 + 
, -3) and (-1 - 
, -3)
B. foci at (-3 + 
, -1) and (-3 - 
, -1)
C. foci at (- 
, -1) and (
, -1)
D. foci at (-3 + 
, -3) and (-3 - 
, -3)
Answer: B
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?
?
?
?
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find 
and
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?
A. 
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C. ?
D. ?
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