Question

find the number of terms of the AP 23,21,19...​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Given:

A.P.=23, 21, 19,...

First term (a) = 23

t1 = 23, t2 = 21, t3 = 19, ....

Common difference (d) = t2 - t1 = 23 -21 = 2