Question

find the sum of the first 29 terms of an AS it's 15term is 2.​

Answer 1

Answer:

I can't understand your question

I think your question is to find cd then I am find the 31 term

Step-by-step explanation:

ANSWER

a

15

=a+14d=74 ,,,,,(1)

a

6

=a+5d=29 .....(2)

Subtract (1) by 2

⇒−9d=−45

⇒d=5

Substitute the value of d in (1)

⇒74=a+5×14

⇒a=4

Then a

31

=a+30d

⇒4+30×5=154

Hence, 31

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st

term is 154.