Ex 9.2, 3 - Chapter 9 Class 12 Differential Equations

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Ex 9.2, 3 - Verify solution: y = cos x + C , y' + sin x = 0 - Ex 9.2

Ex 9.2, 3 - Chapter 9 Class 12 Differential Equations - Part 2

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Ex 9.2, 3 Verify that the given functions (explicit or implicit) is a solution of the corresponding differential equation : 𝑦= cos﷮𝑥+𝐶﷯ : 𝑦﷮′﷯+ sin﷮𝑥=0﷯ 𝑦= cos﷮𝑥+𝐶﷯ 𝑑𝑦﷮𝑑𝑥﷯=−sin⁡𝑥+0=−sin⁡𝑥 Now , we have to verify 𝑦﷮′﷯+sin⁡𝑥=0 Taking L.H.S ∴ 𝑦﷮′﷯+sin⁡𝑥 =−sin⁡𝑥+sin⁡𝑥 =0 = R.H.S Hence Verified

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