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Let y = y ( x ) be the solution of the differential equation ( x 2 − 3 y 2 ) dx + 3 xy dy = 0, y

1. = 1. Then 6 y 2 ( e ) is equal to
2. 3 e 2
3. 2 3 e 2
4. e 2 (4) 2 e 2

Correct answer: e 2 (4) 2 e 2

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