Math, asked by dm983920, 6 months ago

if a1, a2, a3 ... upto a21 are in A. P with common difference d, then a1, a5 , a9, a13

Answers

Answered by vanshikajain21

11

Answer:

are also in AP. with difference 4d

Answered by rajdeepsinghanand262

4

Answer:

distance = 4

Step-by-step explanation:

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