Question

the 11th terms of an AP

Answer 1

n = 11

(a1+a11)/2 = 30

(a1+a11)= 60

Sum of AP = n(a1+a11)/2

= 11*60/2

= 11*30

= 330

SUM OF THE 11TH TERMS IS 330

Answer 2

it is an incomplete question

please write full

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