find the sum of 5+8+11+...t
o10 terms using the formula
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Answer: The sum of given term is 185
Step-by-step explanation:
here, First term (f) = 5 , n= 10 ,common difference (d) =3
10th term = f + (n - 1) d
= 5 + (10 -1) 3
= 5+ 9*3
=5+27
Hence, 10th term=32
sum of 10 terms = n/2 ( f+ 10th term )
=10/2 ( 5+32)
= 5 ( 37 )
=185
therefore, sum of the given terms is 185
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