Question

Use summation notation to write the series 6.6 + 15.4 + 24.2 + ... for 5 terms

Answer 1

The difference is 8.8. So \[ \sum_{n=0}^{5} 8.8n + a_0 \]I think it's what they want. Where a0 is 6.6

Answer 2

Although the upper limit should be 4, :-)

Answer 3

thank you

Answer 4

No problem :-)