Mathematics, 25.06.2020 04:01 cggvbfbvrcf

An AP has 15 terms and a common difference of - 3. Find its first and last terms
if its sum is
b 15
d -120
a 120

Answers: 2

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An AP has 15 terms and a common difference of - 3. Find its first and last terms
if its sum is...