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Paladinen [302]
2 years ago
5

Express the sum 7 + 14 + 21 + 28 + . . . + 105 using sigma notation.

Mathematics
1 answer:
olasank [31]2 years ago
6 0
7+14+21+28+...+105=1*7+2*7+3*7+4*7+...+15*7

15
∑7*n=7*1+7*2+7*3+7*4+...+15*7=7+14+21+28+...+105
n=1

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