given aps 3,1,-1,-3,
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The given AP is 3, 1, -1, -3...
The common difference is d = a2-a1 = 1-3 = -2
The first term a = 3.
The n th term is The = a + (n-1)d = 3 + (n-1)-2
Therefore, Tn = 5 - 2n
The common difference is d = a2-a1 = 1-3 = -2
The first term a = 3.
The n th term is The = a + (n-1)d = 3 + (n-1)-2
Therefore, Tn = 5 - 2n
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