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Solve the differential equation (dy)/(...

Solve the differential equation
`(dy)/(dx) =(e^(x)(sin^(2)x+sin 2x))/(y (2logy+1)).`

Text Solution

Verified by Experts

We have
`(dy)/(dx) =(e^(x)(sin^(2)x+sin 2x))/(y (2logy+1))`
`rArr y(2log y +1)dy = e^(x) (sin^(2)x + sin 2x)dx`
`rArr 2 int underset(II)(y) underset(I)(log) y dy +int y dy = int e^(x) (sin^(2)x+sin 2x)dx`
`rArr 2[(log y)*(y^(2))/(2)-int(1)/(y)*(y^(2))/(2)dy]+(1)/(2)y^(2)=inte^(x)(sin^(2)x +sin 2x)dx `[integrating by parts]
`rArr y^(2)(logy) - int y dy +(1)/(2) y^(2)=int e^(x)(sin^(2)x+sin 2x)dx`
`rArr y^(2) (log y) = e^(x) sin^(2)x +C [ because inte^(x){f(x) +f'(x)}dx = e^(x) f(x) +C].`
`therefore y^(2)(logy) =e^(x) sin^(2)x +C` is the required solution.
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RS AGGARWAL-DIFFERENTIAL EQUATIONS WITH VARIABLE SEPARABLE-Exercise 19B
  1. Solve the differential equation (dy)/(dx) =(e^(x)(sin^(2)x+sin 2x))/...

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  2. Find the general solution of each of the following differential equat...

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  3. Find the general solution of each of the following differential equat...

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  5. Find the general solution of each of the following differential equat...

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  6. Find the general solution of each of the following differential equat...

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  7. Find the general solution of each of the following differential equat...

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  8. Find the general solution of each of the following differential equat...

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  9. Find the general solution of each of the following differential equat...

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  10. Find the general solution of each of the following differential equat...

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  11. Find the general solution of each of the following differential equat...

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  12. Find the general solution of each of the following differential equat...

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  13. Find the general solution of each of the following differential equat...

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  14. Find the general solution of each of the following differential equat...

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  15. Find the general solution of each of the following differential equat...

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  16. Find the general solution of each of the following differential equat...

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  17. Find the general solution of each of the following differential equat...

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  18. Find the general solution of each of the following differential equat...

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  19. Find the general solution of each of the following differential equat...

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  20. Find the general solution of each of the following differential equat...

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  21. Find the general solution of each of the following differential equat...

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