# Let m be a measure defined on Borel sets in the reals R by: m(E) = ∫_E dx/(1+x^2 ) . Find m(R) .

#### Jack

##### New member
Let m be a measure defined on Borel sets in the reals R by: m(E) = ∫_E dx/(1+x^2 ) . Find m(R) .

Let m be a measure defined on Borel sets in the reals R by: m(E) = ∫_E dx/(1+x^2 ) .
Find m(R) .

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