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Let U (x) and V(x) be two differentiab...

Let U (x) and V(x) be two differentiable function. Given `(U(x))/(V(x))=7,` if `(U'(x))/(V'(x))=p` and `[(U(x))/(V(x))]=q` then the value of `(p+q)/(p-q)` is_

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