Sagot :
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
#carryonlearning
HOPE IT HELPS
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
#carryonlearning
HOPE IT HELPS