find the sum of the AP
8,3,-2,...,to 22 terms
Answers
Answered by
8
Answer:
first term [a] = 8
common difference = a2 - a1 = 3-8 = -5
sum of n terms = n/2 [ 2a +(n-1)d ]
sum of 22 terms = 22/2 [ 2(8) + (21) (-5) ]
11[ 16 - 105]
11 (-89)
-979
Answered by
9
Answer:
your answer's in the attachment :D
in the last 2 steps :-
= -11× 89
= -979
Step-by-step explanation:
FOLLOW BACK DIRECTIONER :D
Attachments:
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