T1: r1(X), w1(X), r1(Y), w1(Y)
T2: r2(Y), w2(Y), r2(Z), w2(Z)
finding conflict equivalents from T1 to T2 ===> it means first T1 started then T2.
conflict serializable schedule means, your schedule should conflict equivalent to serial schedule.
what are the conflicting operations between T1 and T2 ?
i) T1 : R(y) with T2: W2(y)
ii) T1 : W1(y) with T2: R2(y) and
iii) T1 : W1(y) with T2: W2(y)
So, ( you are interested in T1 -> T2 ) ===> T1 : W1(y) should be before T2: R2(y) , so howmany combinations remaining can have ?
only one schedule you can have :- r1(X), w1(X), r1(Y), w1(Y), r2(Y), w2(Y), r2(Z), w2(Z).
i know, i explained easy one, try to get the other part, read the answer 2-3 times if you didn't get it !
after that Still if you didn't get comment !!