If y = t(x) be a differentiable function ᵾ x € R, then which of the following is always true?

(a) d^2y/dx^2 – (dy/dx)^3 = 0

(b) d^2y/dx^2 + (dy/dx)^3 d^2x/dy^2 = 0

(c) d^2y/dx^2 – (dx/dy)^3 = 0

(d) d^2y/dx^2 + (dy/dx)^3 = 0

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My question is from Linear Second Order Differential Equations topic in portion Differential Equations of Mathematics – Class 12

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