noEPk;soh dk rfDs B'N T[dkjoD 7H teo xy = dk b/ykfuZso fyZu'. 4 4 jZb L fJZE/ y= , ns/ i/eo x → 0, y →∞ x ns/ i/eo x →∞ , 0 y → H xy = 4 dh ;koDh 20 LOVELY PROFESSIONAL UNIVERSITY