KINDLY EXPLAIN STEP-BY-STEP:

standrad eqn of ellipse is X²/a² + Y² / b² = 1    compairing with above eqn. we get a = 3 and b = 2

as a>b so  ellipse has x axis as major axis  and  length of major axis is 2a = 6  and length of mionr axis is 2b = 4

eccentricity   as we know b² =a² (1-e²)   putting values of a and b we get e =  5 / 3

so focii are  (ae,0) and (-ae,0)  which is (5 , 0) and (-5 , 0)

length of latus rectum = 2a /e =  18 / 5