Mathematics, 18.10.2021 01:30 me1233456

Find the number of terms in the series +8, -12, +18 -307.546875 use formula
sn=n/2(2t1 + (n-1) d)

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Find the number of terms in the series +8, -12, +18 -307.546875 use formula
sn=n/2(2t1 + (n...