# Related series and sequences

Algebra Level pending

In case 2 ignore the first term 1, but take the first term (1) of case 1 in account, and consider 2 as first term 4 as second term etc..,.

If $$a_n$$ and $$b_n$$ are $$n^{th}$$ terms of case 1 and case 2 respectively, and $$A_n$$ and $$B_n$$ represents sum to $$n^{th}$$ term of case 1 and case 2 respectively, find the value of $$B_{n-1} - A_n$$

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