Math, asked by dmshivakumar3483, 10 months ago

The first, twelfth and last term of an arithmetic progression are 4, 31.5, and 376.5 respectively. Determine the number of terms in the series

Answers

Answered by waquarahmad4321

3

Step-by-step explanation:

a=4,a12=31.5

d=(a12-a)/11

now from an and a12 we can get the value of n.

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