5 9 13 17 Sum of the 20 terms of this A. P. is
Answers
Answered by
0
Step-by-step explanation:
Sₙ = n/2[ 2a + (n-1) d ]
S₂₀ = 20/2 [ 2*5 + 19*4 ]
=> 10 [ 10 + 76 ]
=> 10*86
=> 860
Answered by
0
Answer:
860 is the term
hope its helps you
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