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1 . 2 )| 3 points\\ What is the coefficient of ac ?' in the binomial expansion of ( 3 + 20 2 ) 10 ? How many terms are in this expansion ? What is the largest exponent of ac in this expansion ?' b ) [ 2 points] The sequence ( an) ~zo is defined recursively as do = 1 , a1 = 4 and an = San - 1 - 6an - 2 for any ~ > 2. Show that an = 2 . 3 2 - 2 2 for any ~ > O