Answer Question 1:
Given recursive defination ,
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Images Not Shown
Now ,
XXXX X : Images Not Shown and Images Not Shown
XXXX X : Images Not Shown XXX Images Not Shown
Hence elements XXXX are generated XXXX X or XXXXX step are ,
Images Not Shown .
Answer Question2
a)
XXXXXX XXX XXXXXXXXX
b).
Answer XXX Question X
c)