Math, asked by pulakg2006, 9 months ago

Q3 What is the common difference of an AP
in which a²¹-a⁷ = 84 ?​

Answers

Answered by harshitasingh3260
20

Step-by-step explanation:

a+ 20d = a21

a+ 6d= a7

a+20d-a-6d = 84

14d = 84

d= 6

Answered by Richu18
1

Answer:

Step-by-step explanation:

a+ 20d = a21

a+ 6d= a7

a+20d-a-6d = 84

14d = 84

d= 6

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