Grade 12th passDifferential Calculus
If tan−¹(x+y/√x+√y), then xδu⁄δx+yδu/δx=??I know nobody can solve this....
1 Answer
Chandan
let x+y/x1/2+y1/2=t
ans:(x+y)[1/(1+t2)dt/dx]
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can be simplified
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