Need . don't have a calculator.
find the sum of the first n terms
1+-2+4+-8+16+-32...
Mathematics, 17.10.2019 22:30 JeonTaekook
Need . don't have a calculator.
find the sum of the first n terms
1+-2+4+-8+16+-32+ (10 terms)
formula: a-a*r^n / 1-r
Answers: 3
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