just need a b c plz write it clear thank you

2. (10 points) Find the first six terms of the sequence defined by each of these recurrence relations and intital conditions. (a) an=2an1,a0=1 (b) an=an1an2,a0=2,a1=1 (c) an=3an12,a0=1 (d) an=nan1+an22,a0=1,a1=0 (e) an=an1an2+an3,a0=1,a1=1,a2=2