Question

Write the series -25-22-19+... for 14 terms using summation notation

Answer 1

A is the correct one hope ive been of help

Answer 2

The correct answer option is a. 14∑1 (-28+3n)

Explanation:

The summation notation for the given series is 14∑1 (-28+3n) where
`i` (the index of summation or the lower limit of summation) is 1 and
`n` (the upper limit of summation) is 14.

Putting in the values of the limit from 1 to 14 in the notation to get the first 14 terms of the series:

`-28+3(1)=-25\\\\-28+3(2)=-22\\\\-28+3(3)=-19\\\\-28+3(4)=-16\\\\-28+3(5)=-13\\\\-28+3(6)=-10\\\\-28+3(7)=-7\\\\-28+3(8)=-4\\\\-28+3(9)=-1\\\\-28+3(10)=2\\\\-28+3(11)=5\\\\-28+3(12)=8\\\\-28+3(13)=11\\\\-28+3(14)=14\\`

Therefore, first option is the correct one.