Answer:

First negative term in given A.P = 23 rd term

Step-by-step explanation:

Given A.P: 84,80,76,72,...

First term (a) = 84,

We have to find when the first negative term appear in the A.P.

Therefore,

First negative term appear at 23 rd term in A.P

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Verified answer

Answer:

Step-by-step explanation: