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If sin ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ x y = log e |x| + 2 α is the solution of the differential equation x cos dx dy x y ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ = y cos ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ x y + x and y

1. = 3 π , then α 2 is equal to
2. 4
3. 9
4. 3 (4) 12

Correct answer: 9

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