9.solve the differential equation: dy/dx = 4y^2 x1/3

a.1/y = 3x3/4 + c

b.1/y = 3x4/3 + c /y2

c. -1/y2 = 3x4/3 + c/y2

d. -2/y2 =3x4/3 + c/y2

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