Answered

−110+(−102)+(−94)+⋯+66+74

find the sum of this arithmetic series

Sagot :

Pcasseyeuriceid

Answer:

S4=-432

Explanation:

Find the pattern and write the general term:

an -8n-118

Substitute and calculate

Write the formula for the sum of an arithmetic

series

Substitute and calculate

Answer: S4 =-432

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