Question

17.The sum of
the 2nd and the 7th terms of an AP IS
30. If the 15nth term
Is 1
less than twice its 8th term, find the AP.​

Answer 1

Answer:

If its 15th term is 1 less than twice its 8th term, find the AP. T15=2T8-1⇒(a+14d)=2(a+7d)-1⇒a=1.

Step-by-step explanation:

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