Question 82380
Consider an arithmetic series has 14 terms, with t 1 = -100 and t 14 = -48.
a. Find a formula for the series in sigma notation.
b. Find the value of S14
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S(n) = (n/2)[t(1)+t(n)]
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S(14) = (14/2)[-100-48]
=7[-148]
=-1036
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Cheers,
Stan H.