Find the sum1+5+9+13.........for 23terms
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Answered by
1
Answer:
T(n)= a + (n-1)d
T(23) =1+(23-1)×4
=89
S(n)=n/2(a+l)
S(23)= 23/2(1+89)
=23×90/2
=1035
Hope it will help you
Answered by
0
Answer:
answer is 1035
Step-by-step explanation:
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