Question

find the sum of ap 2 , 5 , 8 ............, 182​

Answer 1

Answer:

This is an A.P

d = 3

a = 2

Tn = 182

Tn = (a+ (n-1)d)

182=(2+3n-3)

182=3n-1

3n = 183

n= 61

Sn = n (2a+(n-1)d)

2

Sn= 61 (4+60*3)

2

Sn = 61*184

2

Sn = 5612

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