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Verified answer
A.7n-2
b.
c.
- 2()
Verified answer
A.)a = 5
b = 7
Un = a + ( n - 1 ) b
Un = 5 + ( n - 1 ) 7
Un = 5 + 7n - 7
Un = 7n - 2
b.)
a = 3/2
b = - 3/4
Un = a + ( n - 1 ) b
Un = 3/2 + ( n - 1 ) -3/4
Un = 3/2 - 3/4n + 3/4
Un = - 1/4 + n