Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ujjawal vishal
Use Schwarz-Pick Lemma :- |f'(z)| ≤ [1-f(Z)^2] / [1-z^2] Put z =0 & Z =1/2 we will find options b & c correct. option d is wrong as f(1/2)≠1/2