1.

If variables x and y are related by the equation `x=int_(0)^(y)(1)/(sqrt(1+9u^(2)))` du, then `(dy)/(dx)` is equal toA. `(1)/(sqrt(1+9y^(2)))`B. `sqrt(1+9y^(2))`C. `1+9y^(2)`D. `(1)/(1+9y^(2))`

Answer» Correct Answer - B


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