Question

5. The first term of an AP =-7 and
common difference=3 then the sum
of first 10 terms is​

Answer 1

Answer:

97

Explanation:

step by step explanation

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Answer 2

Explanation:

a = -7

d = 3

n = 10

sn = n / 2+ (2a + ( n - 1) d

sn = 10/2 + ( 2( - 7) + ( 10-1) 3

sn = 5 - 14 + 27

sn = 41 - 5

sn = 36

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