Mathematics

Mathematics

Problem

f(x)=∫(2−11+x2−11+x2)dxf(x) = \int \left( 2 - \frac{1}{1+x^2} - \frac{1}{\sqrt{1+x^2}} \right) dx then ff is : (A) increasing in (0,∞)(0, \infty) and decreasing in (−∞,0)(-\infty, 0) (B) increasing in (−∞,0)(-\infty, 0) and decreasing in (0,∞)(0, \infty) (C) increasing in (−∞,∞)(-\infty, \infty) (D) decreasing in (−∞,∞)(-\infty, \infty)

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