NCERT Example 1 - Differential Equations

Question: Find the order and degree, if defined, of: (i) dy/dx - cos x = 0 (ii) x y y'' + x (y')^2 - y y' = 0 (iii) y''' + y^2 + e^{y'} = 0.

Answer: (i) Order 1; Degree 1. (ii) Order 2; Degree 1. (iii) Order 3; Degree not defined.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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