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Example 1 Find the order and degree, if defined , of each of the following differential equations : (ii) 𝑥𝑦 (𝑑^2 𝑦)/(𝑑𝑥^2 )+𝑥(𝑑𝑦/𝑑𝑥)^2−𝑦 𝑑𝑦/𝑑𝑥=0 𝑥𝑦 (𝑑^2 𝑦)/(𝑑𝑥^2 )+𝑥(𝑑𝑦/𝑑𝑥)^2−𝑦 𝑑𝑦/𝑑𝑥=0 𝑥𝑦𝑦^′′+𝑥(𝑦^′ )^2−𝑦𝑦^′=0 Highest order of derivative = 2 ∴ Order = 𝟐 Degree = Power of 𝑦^′′ Degree = 𝟏

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.