Variable separable form:
Ay' = y
Bf(x) dx + g(y) dy = 0 (separable)
Cy² = x
DNot solvable
Answer & Solution
Correct answer: B. f(x) dx + g(y) dy = 0 (separable)
Equation dy/dx = f(x)g(y) is variable separable: dy/g(y) = f(x) dx. Integrate both sides. Most basic DE technique.
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