(a) Use the identity ∫dxy(x2 1 1) 5 tan21 x to prove Eq. (7.136). (b) Look up the integral tables, for instance on the Web, and prove Eq. (7.138). (c) Find NEB if An( jf ) contains two (instead of...

(a) Use the identity ∫dxy(x2 1 1) 5 tan21 x to prove Eq. (7.136). (b) Look up the integral tables, for instance on the Web, and prove Eq. (7.138). (c) Find NEB if An( jf ) contains two (instead of one) pole frequencies, both at f 5 fB. Compare with Eq. (7.136) and justify the difference in terms of Bode plot areas. (d) What approximation would you use in this case for fH for fl icker noise?