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The value of int 0^ infty frac 1 1 + text...

This question belongs to Engineering Maths Calculus
Calculus
?

The value of $$\int_0^\infty {\frac{1}{{1 + {{\text{x}}^2}}}} {\text{dx}} + \int_0^\infty {\frac{{\sin {\text{x}}}}{{\text{x}}}} {\text{dx}}$$      is

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Correct Answer: Option B
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