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Ex 9.1, 1 Determine order and degree (if defined) of differential equations. (𝑑^4 𝑦)/(𝑑π‘₯^4 ) +𝑠𝑖𝑛(𝑦^β€²β€²β€² )=0 (𝑑^4 𝑦)/(𝑑π‘₯^4 )+𝑠𝑖𝑛(𝑦^β€²β€²β€² )=0 π’š^β€²β€²β€²β€²+π’”π’Šπ’(π’š^β€²β€²β€² )=𝟎 Highest Order of Derivative = 4 ∴ Order = πŸ’ Degree Since 𝑦^β€²β€²β€² is in sin⁑〖 (𝑦^β€²β€²β€² )γ€— It is not a polynomial equation ∴ Degree is Not Defined

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.