Can u help and explain plz
1 answer:
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I'm guessing S^20 is actually referring to the 20th partial sum 
, with
in the arithmetic case, and
in the geometric case.
(a) Combining like terms, we have
and invoking the formula
we end up with
(b) Multiply by 1.1, then subtract this from :
in the arithmetic case, and
in the geometric case.
(a) Combining like terms, we have
and invoking the formula
we end up with
(b) Multiply
