Math, asked by sameer1911, 8 months ago

What is the common difference
of an AP in
which a=4 and a21
= 84

Answers

Answered by chandanakothari83
2

Answer:

d=6...

Hope it helps you...☺️

Answered by XxHeartHackerRahulxX
1
  • a = 4
  • a21 = 84

=> a+20d = 84

=> 4+20d = 84

=> d = 80/20 = 4

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