Math, asked by asnasina97, 10 months ago

When do we use the formula n/2(a+l) in ARITHMETIC PROGRESSIONS..maths

Answers

Answered by umarrv27

2

Answer:

when we want to find sum of nth term

Answered by anushkiansourav

2

Answer:

when you want to find the sum of an A. P and the first term and the last term is already given in the question

Step-by-step explanation:

a is the first term

l is the last term

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