Question 22Evaluate the sum $$\frac2{1+\tan\left(\frac\pi{260}\right)}+\frac2{1+\tan\left(\frac{2\pi}{260}\right)}+\frac2{1+\tan\left(\frac{3\pi}{260}\right)}+\cdots+\frac2{1+\tan\left(\frac{129\pi}{260}\right)}.$$