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upendra hembram Grade: 12
`        dy/dx=sin(x+y)+cos(x+y)`
8 years ago

## Answers : (1)

147 Points
```										Dear upendra
dy/dx=sin(x+y)+cos(x+y)
let   x+y=u
1+dy/dx=du/dy
so differential become
du/dy -1 =sinu  +cosu
du/dy=sinu +cosu +1
du/(sinu +cosu +1)   =dy
∫du/(sinu +cosu +1) =∫dy
now this a ordinary intigral u can easly solve it

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```
8 years ago
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