1.If f(x)=tan−1(2x1+22x+1)f(x) = \tan^{-1}\left( \frac{2^x}{1 + 2^{2x+1}} \right)f(x)=tan−1(1+22x+12x), then ∑r=09f(r)\sum_{r=0}^{9} f(r)∑r=09f(r) isa.tan−1(1024)\tan^{-1}(1024)tan−1(1024)b.tan−1(10231024)\tan^{-1}\left(\frac{1023}{1024}\right)tan−1(10241023)c.tan−1(10231025)\tan^{-1}\left(\frac{1023}{1025}\right)tan−1(10251023)d.None of theseLogin to continueOnly logged in users canattempt or see the solution.
