katey1090 katey1090

11-03-2024
Mathematics

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Write the sum in expanded form: sumj=0n-1 (-5)j .
a) 1 - 5 + 25 - 125 +
b) 1 + 5 + 25 + + (-5)n-1
c) 1 - 5 + 25 + + (-5)n-1
d) 1 + 5 - 25 + + (-5)n-1

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